1138174464 has 160 divisors (see below), whose sum is σ = 3560236416. Its totient is φ = 316293120.

The previous prime is 1138174459. The next prime is 1138174469. The reversal of 1138174464 is 4644718311.

It is an interprime number because it is at equal distance from previous prime (1138174459) and next prime (1138174469).

It is a super-2 number, since 2×1138174464² = 2590882221003374592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1138174469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396394 + ... + 399254.

Almost surely, 2^1138174464 is an apocalyptic number.

1138174464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1138174464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1780118208).

1138174464 is an abundant number, since it is smaller than the sum of its proper divisors (2422061952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1138174464 is an equidigital number, since it uses as much as digits as its factorization.

1138174464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926 (or 2910 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 1138174464 is about 33736.8413459233. The cubic root of 1138174464 is about 1044.0860163124.

The spelling of 1138174464 in words is "one billion, one hundred thirty-eight million, one hundred seventy-four thousand, four hundred sixty-four".