138360624 has 40 divisors (see below), whose sum is σ = 369760560. Its totient is φ = 44529408.

The previous prime is 138360619. The next prime is 138360631. The reversal of 138360624 is 426063831.

138360624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48307 + ... + 51090.

It is an arithmetic number, because the mean of its divisors is an integer number (9244014).

Almost surely, 2^138360624 is an apocalyptic number.

It is an amenable number.

138360624 is an abundant number, since it is smaller than the sum of its proper divisors (231399936).

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

138360624 is a wasteful number, since it uses less digits than its factorization.

138360624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99437 (or 99431 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 138360624 is about 11762.6792866251. The cubic root of 138360624 is about 517.2146733969.

The spelling of 138360624 in words is "one hundred thirty-eight million, three hundred sixty thousand, six hundred twenty-four".