732139056 has 90 divisors (see below), whose sum is σ = 2252229980. Its totient is φ = 221855040.

The previous prime is 732139043. The next prime is 732139061. The reversal of 732139056 is 650931237.

It is a super-2 number, since 2×732139056² = 1072055194641142272, which contains 22 as substring.

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 732139056.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3586 + ... + 38433.

Almost surely, 2^732139056 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 732139056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126114990).

732139056 is an abundant number, since it is smaller than the sum of its proper divisors (1520090924).

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

732139056 is a wasteful number, since it uses less digits than its factorization.

732139056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42055 (or 42035 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 732139056 is about 27058.0682237295. The cubic root of 732139056 is about 901.2899428731.

The spelling of 732139056 in words is "seven hundred thirty-two million, one hundred thirty-nine thousand, fifty-six".