139732940 has 12 divisors (see below), whose sum is σ = 293439216. Its totient is φ = 55893168.

The previous prime is 139732939. The next prime is 139732951. The reversal of 139732940 is 49237931.

It is a junction number, because it is equal to n+sod(n) for n = 139732894 and 139732903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3493304 + ... + 3493343.

It is an arithmetic number, because the mean of its divisors is an integer number (24453268).

Almost surely, 2^139732940 is an apocalyptic number.

139732940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139732940 is an abundant number, since it is smaller than the sum of its proper divisors (153706276).

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

139732940 is a wasteful number, since it uses less digits than its factorization.

139732940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6986656 (or 6986654 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 139732940 is about 11820.8688343962. The cubic root of 139732940 is about 518.9190315760.

The spelling of 139732940 in words is "one hundred thirty-nine million, seven hundred thirty-two thousand, nine hundred forty".