138416970 has 32 divisors (see below), whose sum is σ = 332599680. Its totient is φ = 36866880.

The previous prime is 138416969. The next prime is 138416981. The reversal of 138416970 is 79614831.

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, 28371 + ... + 32889.

It is an arithmetic number, because the mean of its divisors is an integer number (10393740).

Almost surely, 2^138416970 is an apocalyptic number.

138416970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138416970 is an abundant number, since it is smaller than the sum of its proper divisors (194182710).

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

138416970 is a wasteful number, since it uses less digits than its factorization.

138416970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 138416970 is about 11765.0741604122. The cubic root of 138416970 is about 517.2848740604.

The spelling of 138416970 in words is "one hundred thirty-eight million, four hundred sixteen thousand, nine hundred seventy".