139074768 has 120 divisors (see below), whose sum is σ = 447310656. Its totient is φ = 39513600.

The previous prime is 139074763. The next prime is 139074769. The reversal of 139074768 is 867470931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139074763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283003 + ... + 283493.

Almost surely, 2^139074768 is an apocalyptic number.

139074768 is a gapful number since it is divisible by the number (18) 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 139074768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223655328).

139074768 is an abundant number, since it is smaller than the sum of its proper divisors (308235888).

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

139074768 is a wasteful number, since it uses less digits than its factorization.

139074768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 139074768 is about 11792.9965657588. The cubic root of 139074768 is about 518.1030091849.

The spelling of 139074768 in words is "one hundred thirty-nine million, seventy-four thousand, seven hundred sixty-eight".