743644056 has 64 divisors (see below), whose sum is σ = 2021712480. Its totient is φ = 226990080.

The previous prime is 743644051. The next prime is 743644079. The reversal of 743644056 is 650446347.

It is a happy number.

It is a super-2 number, since 2×743644056² = 1106012964048262272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743644051) 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, 9535 + ... + 39726.

Almost surely, 2^743644056 is an apocalyptic number.

It is an amenable number.

743644056 is an abundant number, since it is smaller than the sum of its proper divisors (1278068424).

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

743644056 is a wasteful number, since it uses less digits than its factorization.

743644056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49324 (or 49320 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 743644056 is about 27269.8378433023. The cubic root of 743644056 is about 905.9864526333.

The spelling of 743644056 in words is "seven hundred forty-three million, six hundred forty-four thousand, fifty-six".