139435416 has 72 divisors (see below), whose sum is σ = 383472180. Its totient is φ = 45769536.

The previous prime is 139435403. The next prime is 139435423. The reversal of 139435416 is 614534931.

139435416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 855351 + ... + 855513.

Almost surely, 2^139435416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139435416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191736090).

139435416 is an abundant number, since it is smaller than the sum of its proper divisors (244036764).

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

139435416 is a wasteful number, since it uses less digits than its factorization.

139435416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 277 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 139435416 is about 11808.2774357651. The cubic root of 139435416 is about 518.5504700094.

The spelling of 139435416 in words is "one hundred thirty-nine million, four hundred thirty-five thousand, four hundred sixteen".