139799024 has 80 divisors (see below), whose sum is σ = 305337600. Its totient is φ = 61673472.

The previous prime is 139799021. The next prime is 139799029. The reversal of 139799024 is 420997931.

139799024 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139799024² = 39087534222705152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139799021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291617 + ... + 292095.

It is an arithmetic number, because the mean of its divisors is an integer number (3816720).

Almost surely, 2^139799024 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 139799024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152668800).

139799024 is an abundant number, since it is smaller than the sum of its proper divisors (165538576).

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

139799024 is a wasteful number, since it uses less digits than its factorization.

139799024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 139799024 is about 11823.6637299950. The cubic root of 139799024 is about 519.0008229340. Note that the first 3 decimals are identical.

The spelling of 139799024 in words is "one hundred thirty-nine million, seven hundred ninety-nine thousand, twenty-four".