139390350 has 96 divisors (see below), whose sum is σ = 393617664. Its totient is φ = 32313600.

The previous prime is 139390337. The next prime is 139390357. The reversal of 139390350 is 53093931.

139390350 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139390357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36114 + ... + 39786.

It is an arithmetic number, because the mean of its divisors is an integer number (4100184).

Almost surely, 2^139390350 is an apocalyptic number.

139390350 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 139390350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196808832).

139390350 is an abundant number, since it is smaller than the sum of its proper divisors (254227314).

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

139390350 is a wasteful number, since it uses less digits than its factorization.

139390350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722 (or 3717 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 33.

The square root of 139390350 is about 11806.3690438678. The cubic root of 139390350 is about 518.4945982320.

The spelling of 139390350 in words is "one hundred thirty-nine million, three hundred ninety thousand, three hundred fifty".