139240336 has 40 divisors (see below), whose sum is σ = 286454880. Its totient is φ = 65339904.

The previous prime is 139240333. The next prime is 139240349. The reversal of 139240336 is 633042931.

It is a junction number, because it is equal to n+sod(n) for n = 139240298 and 139240307.

It is not an unprimeable number, because it can be changed into a prime (139240333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167955 + ... + 168781.

It is an arithmetic number, because the mean of its divisors is an integer number (7161372).

Almost surely, 2^139240336 is an apocalyptic number.

139240336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139240336 is an abundant number, since it is smaller than the sum of its proper divisors (147214544).

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

139240336 is a wasteful number, since it uses less digits than its factorization.

139240336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 139240336 is about 11800.0142372795. The cubic root of 139240336 is about 518.3085275594.

The spelling of 139240336 in words is "one hundred thirty-nine million, two hundred forty thousand, three hundred thirty-six".