742634538 has 8 divisors (see below), whose sum is σ = 1485269088. Its totient is φ = 247544844.

The previous prime is 742634533. The next prime is 742634567. The reversal of 742634538 is 835436247.

It is a sphenic number, since it is the product of 3 distinct primes.

742634538 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 742634538.

It is not an unprimeable number, because it can be changed into a prime (742634533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61886206 + ... + 61886217.

It is an arithmetic number, because the mean of its divisors is an integer number (185658636).

Almost surely, 2^742634538 is an apocalyptic number.

742634538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

742634538 is a wasteful number, since it uses less digits than its factorization.

742634538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123772428.

The product of its digits is 483840, while the sum is 42.

The square root of 742634538 is about 27251.3217661089. The cubic root of 742634538 is about 905.5762995024.

The spelling of 742634538 in words is "seven hundred forty-two million, six hundred thirty-four thousand, five hundred thirty-eight".