139080240 has 300 divisors, whose sum is σ = 527180544. Its totient is φ = 33965568.

The previous prime is 139080233. The next prime is 139080269. The reversal of 139080240 is 42080931.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1095057 + ... + 1095183.

Almost surely, 2^139080240 is an apocalyptic number.

139080240 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 139080240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263590272).

139080240 is an abundant number, since it is smaller than the sum of its proper divisors (388100304).

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

139080240 is a wasteful number, since it uses less digits than its factorization.

139080240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 139080240 is about 11793.2285655795. The cubic root of 139080240 is about 518.1098041450.

The spelling of 139080240 in words is "one hundred thirty-nine million, eighty thousand, two hundred forty".