920047392 has 72 divisors (see below), whose sum is σ = 2854247760. Its totient is φ = 278801280.

The previous prime is 920047369. The next prime is 920047399. The reversal of 920047392 is 293740029.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (920047399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142042 + ... + 148377.

It is an arithmetic number, because the mean of its divisors is an integer number (39642330).

Almost surely, 2^920047392 is an apocalyptic number.

It is an amenable number.

920047392 is an abundant number, since it is smaller than the sum of its proper divisors (1934200368).

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

920047392 is a wasteful number, since it uses less digits than its factorization.

920047392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290446 (or 290435 counting only the distinct ones).

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

The square root of 920047392 is about 30332.2830001304. The cubic root of 920047392 is about 972.6055262689.

The spelling of 920047392 in words is "nine hundred twenty million, forty-seven thousand, three hundred ninety-two".