738121536 has 84 divisors (see below), whose sum is σ = 2127808800. Its totient is φ = 244631808.

The previous prime is 738121529. The next prime is 738121561. The reversal of 738121536 is 635121837.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 738121536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99525 + ... + 106683.

Almost surely, 2^738121536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 738121536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063904400).

738121536 is an abundant number, since it is smaller than the sum of its proper divisors (1389687264).

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

738121536 is a wasteful number, since it uses less digits than its factorization.

738121536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7356 (or 7343 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 738121536 is about 27168.3922233172. The cubic root of 738121536 is about 903.7381704460.

The spelling of 738121536 in words is "seven hundred thirty-eight million, one hundred twenty-one thousand, five hundred thirty-six".