139630350 has 72 divisors (see below), whose sum is σ = 367965288. Its totient is φ = 35033600.

The previous prime is 139630349. The next prime is 139630357. The reversal of 139630350 is 53036931.

It is a super-2 number, since 2×139630350² = 38993269282245000, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139630357) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41740 + ... + 44960.

It is an arithmetic number, because the mean of its divisors is an integer number (5110629).

Almost surely, 2^139630350 is an apocalyptic number.

139630350 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 139630350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183982644).

139630350 is an abundant number, since it is smaller than the sum of its proper divisors (228334938).

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

139630350 is a wasteful number, since it uses less digits than its factorization.

139630350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270 (or 3248 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 30.

The square root of 139630350 is about 11816.5286780848. The cubic root of 139630350 is about 518.7920060822.

The spelling of 139630350 in words is "one hundred thirty-nine million, six hundred thirty thousand, three hundred fifty".