60667920 has 80 divisors (see below), whose sum is σ = 208974720. Its totient is φ = 16177536.

The previous prime is 60667909. The next prime is 60667949. The reversal of 60667920 is 2976606.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 11884 + ... + 16203.

It is an arithmetic number, because the mean of its divisors is an integer number (2612184).

Almost surely, 2^60667920 is an apocalyptic number.

60667920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60667920 is an abundant number, since it is smaller than the sum of its proper divisors (148306800).

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

60667920 is a wasteful number, since it uses less digits than its factorization.

60667920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28109 (or 28097 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 60667920 is about 7788.9614198557. The cubic root of 60667920 is about 392.9340836945.

The spelling of 60667920 in words is "sixty million, six hundred sixty-seven thousand, nine hundred twenty".