920479770 has 48 divisors (see below), whose sum is σ = 2735141760. Its totient is φ = 210395232.

The previous prime is 920479759. The next prime is 920479771. The reversal of 920479770 is 77974029.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (920479771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 729910 + ... + 731169.

It is an arithmetic number, because the mean of its divisors is an integer number (56982120).

Almost surely, 2^920479770 is an apocalyptic number.

920479770 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

920479770 is an abundant number, since it is smaller than the sum of its proper divisors (1814661990).

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

920479770 is a wasteful number, since it uses less digits than its factorization.

920479770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461099 (or 1461096 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 920479770 is about 30339.4095196330. The cubic root of 920479770 is about 972.7578616726.

It can be divided in two parts, 920 and 479770, that added together give a triangular number (480690 = T₉₈₀).

The spelling of 920479770 in words is "nine hundred twenty million, four hundred seventy-nine thousand, seven hundred seventy".