138594470 has 32 divisors (see below), whose sum is σ = 290495808. Its totient is φ = 46620288.

The previous prime is 138594413. The next prime is 138594529. The reversal of 138594470 is 74495831.

It is a super-2 number, since 2×138594470² = 38416854229161800, which contains 22 as substring.

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, 14969 + ... + 22388.

It is an arithmetic number, because the mean of its divisors is an integer number (9077994).

Almost surely, 2^138594470 is an apocalyptic number.

138594470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138594470 is an abundant number, since it is smaller than the sum of its proper divisors (151901338).

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

138594470 is a wasteful number, since it uses less digits than its factorization.

138594470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37424.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 138594470 is about 11772.6152574524. The cubic root of 138594470 is about 517.5058942750.

The spelling of 138594470 in words is "one hundred thirty-eight million, five hundred ninety-four thousand, four hundred seventy".