238477164 has 12 divisors (see below), whose sum is σ = 556446744. Its totient is φ = 79492384.

The previous prime is 238477153. The next prime is 238477199. The reversal of 238477164 is 461774832.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9936537 + ... + 9936560.

It is an arithmetic number, because the mean of its divisors is an integer number (46370562).

Almost surely, 2^238477164 is an apocalyptic number.

It is an amenable number.

238477164 is an abundant number, since it is smaller than the sum of its proper divisors (317969580).

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

238477164 is a wasteful number, since it uses less digits than its factorization.

238477164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19873104 (or 19873102 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 238477164 is about 15442.7058509835. The cubic root of 238477164 is about 620.1293209256.

The spelling of 238477164 in words is "two hundred thirty-eight million, four hundred seventy-seven thousand, one hundred sixty-four".