392118420 has 48 divisors (see below), whose sum is σ = 1099703808. Its totient is φ = 104396160.

The previous prime is 392118407. The next prime is 392118427. The reversal of 392118420 is 24811293.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392118427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34717 + ... + 44603.

It is an arithmetic number, because the mean of its divisors is an integer number (22910496).

Almost surely, 2^392118420 is an apocalyptic number.

392118420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

392118420 is an abundant number, since it is smaller than the sum of its proper divisors (707585388).

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

392118420 is a wasteful number, since it uses less digits than its factorization.

392118420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10560 (or 10558 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 392118420 is about 19801.9802040099. The cubic root of 392118420 is about 731.9348310104.

The spelling of 392118420 in words is "three hundred ninety-two million, one hundred eighteen thousand, four hundred twenty".