1372836864 has 88 divisors (see below), whose sum is σ = 4181906368. Its totient is φ = 392232960.

The previous prime is 1372836841. The next prime is 1372836869. The reversal of 1372836864 is 4686382731.

It is a Harshad number since it is a multiple of its sum of digits (48).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372836869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10417 + ... + 53424.

Almost surely, 2^1372836864 is an apocalyptic number.

1372836864 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 1372836864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2090953184).

1372836864 is an abundant number, since it is smaller than the sum of its proper divisors (2809069504).

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

1372836864 is an equidigital number, since it uses as much as digits as its factorization.

1372836864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63871 (or 63853 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 1372836864 is about 37051.8132349822. The cubic root of 1372836864 is about 1111.4066154233.

The spelling of 1372836864 in words is "one billion, three hundred seventy-two million, eight hundred thirty-six thousand, eight hundred sixty-four".