139426140 has 48 divisors (see below), whose sum is σ = 446164992. Its totient is φ = 31868736.

The previous prime is 139426121. The next prime is 139426169. The reversal of 139426140 is 41624931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 139426098 and 139426107.

It is a congruent number.

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, 165564 + ... + 166403.

It is an arithmetic number, because the mean of its divisors is an integer number (9295104).

Almost surely, 2^139426140 is an apocalyptic number.

139426140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139426140 is an abundant number, since it is smaller than the sum of its proper divisors (306738852).

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

139426140 is a wasteful number, since it uses less digits than its factorization.

139426140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331986 (or 331984 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 139426140 is about 11807.8846539082. The cubic root of 139426140 is about 518.5389708247.

The spelling of 139426140 in words is "one hundred thirty-nine million, four hundred twenty-six thousand, one hundred forty".