740735538 has 16 divisors (see below), whose sum is σ = 1483014720. Its totient is φ = 246654576.

The previous prime is 740735533. The next prime is 740735581. The reversal of 740735538 is 835537047.

It is a super-2 number, since 2×740735538² = 1097378274512298888, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 740735538.

It is not an unprimeable number, because it can be changed into a prime (740735531) 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, 58033 + ... + 69636.

It is an arithmetic number, because the mean of its divisors is an integer number (92688420).

Almost surely, 2^740735538 is an apocalyptic number.

740735538 is an abundant number, since it is smaller than the sum of its proper divisors (742279182).

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

740735538 is a wasteful number, since it uses less digits than its factorization.

740735538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128641.

The product of its (nonzero) digits is 352800, while the sum is 42.

The square root of 740735538 is about 27216.4571169724. The cubic root of 740735538 is about 904.8037538317.

The spelling of 740735538 in words is "seven hundred forty million, seven hundred thirty-five thousand, five hundred thirty-eight".