738638534 has 16 divisors (see below), whose sum is σ = 1136827440. Its totient is φ = 359725440.

The previous prime is 738638531. The next prime is 738638539. The reversal of 738638534 is 435836837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738638531) 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, 45722 + ... + 59730.

It is an arithmetic number, because the mean of its divisors is an integer number (71051715).

Almost surely, 2^738638534 is an apocalyptic number.

738638534 is a deficient number, since it is larger than the sum of its proper divisors (398188906).

738638534 is a wasteful number, since it uses less digits than its factorization.

738638534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14695.

The product of its digits is 1451520, while the sum is 47.

The square root of 738638534 is about 27177.9052540846. The cubic root of 738638534 is about 903.9491211543.

The spelling of 738638534 in words is "seven hundred thirty-eight million, six hundred thirty-eight thousand, five hundred thirty-four".