138425496 has 64 divisors (see below), whose sum is σ = 379209600. Its totient is φ = 41760000.

The previous prime is 138425489. The next prime is 138425501. The reversal of 138425496 is 694524831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65220 + ... + 67308.

It is an arithmetic number, because the mean of its divisors is an integer number (5925150).

Almost surely, 2^138425496 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 138425496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189604800).

138425496 is an abundant number, since it is smaller than the sum of its proper divisors (240784104).

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

138425496 is a wasteful number, since it uses less digits than its factorization.

138425496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360 (or 2356 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 138425496 is about 11765.4364984900. The cubic root of 138425496 is about 517.2954948205.

The spelling of 138425496 in words is "one hundred thirty-eight million, four hundred twenty-five thousand, four hundred ninety-six".