139955340 has 48 divisors (see below), whose sum is σ = 447858432. Its totient is φ = 31989696.

The previous prime is 139955329. The next prime is 139955357. The reversal of 139955340 is 43559931.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its 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, 166194 + ... + 167033.

It is an arithmetic number, because the mean of its divisors is an integer number (9330384).

Almost surely, 2^139955340 is an apocalyptic number.

139955340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139955340 is an abundant number, since it is smaller than the sum of its proper divisors (307903092).

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

139955340 is a wasteful number, since it uses less digits than its factorization.

139955340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333246 (or 333244 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 39.

The square root of 139955340 is about 11830.2721862179. The cubic root of 139955340 is about 519.1941907924.

The spelling of 139955340 in words is "one hundred thirty-nine million, nine hundred fifty-five thousand, three hundred forty".