139876380 has 108 divisors (see below), whose sum is σ = 493594920. Its totient is φ = 31969728.

The previous prime is 139876349. The next prime is 139876441. The reversal of 139876380 is 83678931.

It is a happy number.

139876380 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 7 + 638 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 891 + ... + 16749.

Almost surely, 2^139876380 is an apocalyptic number.

139876380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139876380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246797460).

139876380 is an abundant number, since it is smaller than the sum of its proper divisors (353718540).

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

139876380 is a wasteful number, since it uses less digits than its factorization.

139876380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15888 (or 15876 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 139876380 is about 11826.9345140658. The cubic root of 139876380 is about 519.0965327696.

The spelling of 139876380 in words is "one hundred thirty-nine million, eight hundred seventy-six thousand, three hundred eighty".