139889004 has 12 divisors (see below), whose sum is σ = 326407704. Its totient is φ = 46629664.

The previous prime is 139889003. The next prime is 139889033. The reversal of 139889004 is 400988931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×139889004² = 39137866880224032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139889003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5828697 + ... + 5828720.

It is an arithmetic number, because the mean of its divisors is an integer number (27200642).

Almost surely, 2^139889004 is an apocalyptic number.

It is an amenable number.

139889004 is an abundant number, since it is smaller than the sum of its proper divisors (186518700).

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

139889004 is a wasteful number, since it uses less digits than its factorization.

139889004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11657424 (or 11657422 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 139889004 is about 11827.4681990695. The cubic root of 139889004 is about 519.1121486477.

The spelling of 139889004 in words is "one hundred thirty-nine million, eight hundred eighty-nine thousand, four".