920378970 has 128 divisors (see below), whose sum is σ = 2816570880. Its totient is φ = 209502720.

The previous prime is 920378969. The next prime is 920378999. The reversal of 920378970 is 79873029.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 530224 + ... + 531956.

It is an arithmetic number, because the mean of its divisors is an integer number (22004460).

Almost surely, 2^920378970 is an apocalyptic number.

920378970 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 920378970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408285440).

920378970 is an abundant number, since it is smaller than the sum of its proper divisors (1896191910).

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

920378970 is a wasteful number, since it uses less digits than its factorization.

920378970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 920378970 is about 30337.7482684526. The cubic root of 920378970 is about 972.7223520847.

The spelling of 920378970 in words is "nine hundred twenty million, three hundred seventy-eight thousand, nine hundred seventy".