139860330 has 64 divisors (see below), whose sum is σ = 365558400. Its totient is φ = 34110720.

The previous prime is 139860319. The next prime is 139860341. The reversal of 139860330 is 33068931.

It is an interprime number because it is at equal distance from previous prime (139860319) and next prime (139860341).

It is a junction number, because it is equal to n+sod(n) for n = 139860291 and 139860300.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12300 + ... + 20760.

It is an arithmetic number, because the mean of its divisors is an integer number (5711850).

Almost surely, 2^139860330 is an apocalyptic number.

139860330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139860330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182779200).

139860330 is an abundant number, since it is smaller than the sum of its proper divisors (225698070).

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

139860330 is a wasteful number, since it uses less digits than its factorization.

139860330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 139860330 is about 11826.2559586709. The cubic root of 139860330 is about 519.0766775755.

The spelling of 139860330 in words is "one hundred thirty-nine million, eight hundred sixty thousand, three hundred thirty".