139727432 has 64 divisors (see below), whose sum is σ = 290304000. Its totient is φ = 62657280.

The previous prime is 139727417. The next prime is 139727479. The reversal of 139727432 is 234727931.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 937694 + ... + 937842.

It is an arithmetic number, because the mean of its divisors is an integer number (4536000).

Almost surely, 2^139727432 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 139727432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145152000).

139727432 is an abundant number, since it is smaller than the sum of its proper divisors (150576568).

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

139727432 is a wasteful number, since it uses less digits than its factorization.

139727432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 362 counting only the distinct ones).

The product of its digits is 63504, while the sum is 38.

The square root of 139727432 is about 11820.6358543016. The cubic root of 139727432 is about 518.9122132276.

The spelling of 139727432 in words is "one hundred thirty-nine million, seven hundred twenty-seven thousand, four hundred thirty-two".