139460880 has 80 divisors (see below), whose sum is σ = 465595200. Its totient is φ = 34328064.

The previous prime is 139460873. The next prime is 139460887. The reversal of 139460880 is 88064931.

It is an interprime number because it is at equal distance from previous prime (139460873) and next prime (139460887).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (139460887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19230 + ... + 25469.

It is an arithmetic number, because the mean of its divisors is an integer number (5819940).

Almost surely, 2^139460880 is an apocalyptic number.

139460880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139460880 is an abundant number, since it is smaller than the sum of its proper divisors (326134320).

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

139460880 is a wasteful number, since it uses less digits than its factorization.

139460880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44728 (or 44722 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 139460880 is about 11809.3556132416. The cubic root of 139460880 is about 518.5820343609.

The spelling of 139460880 in words is "one hundred thirty-nine million, four hundred sixty thousand, eight hundred eighty".