1123774640 has 20 divisors (see below), whose sum is σ = 2612776224. Its totient is φ = 449509824.

The previous prime is 1123774637. The next prime is 1123774643. The reversal of 1123774640 is 464773211.

It is an interprime number because it is at equal distance from previous prime (1123774637) and next prime (1123774643).

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1123774640.

It is not an unprimeable number, because it can be changed into a prime (1123774643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7023512 + ... + 7023671.

Almost surely, 2^1123774640 is an apocalyptic number.

1123774640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123774640 is an abundant number, since it is smaller than the sum of its proper divisors (1489001584).

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

1123774640 is a wasteful number, since it uses less digits than its factorization.

1123774640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14047196 (or 14047190 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1123774640 is about 33522.7480973741. The cubic root of 1123774640 is about 1039.6641667135.

The spelling of 1123774640 in words is "one billion, one hundred twenty-three million, seven hundred seventy-four thousand, six hundred forty".