920353980 has 192 divisors, whose sum is σ = 3226567680. Its totient is φ = 190826496.

The previous prime is 920353963. The next prime is 920353991. The reversal of 920353980 is 89353029.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 320712 + ... + 323568.

It is an arithmetic number, because the mean of its divisors is an integer number (16805040).

Almost surely, 2^920353980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 920353980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613283840).

920353980 is an abundant number, since it is smaller than the sum of its proper divisors (2306213700).

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

920353980 is a wasteful number, since it uses less digits than its factorization.

920353980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948 (or 2946 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 920353980 is about 30337.3364025255. The cubic root of 920353980 is about 972.7135482650.

The spelling of 920353980 in words is "nine hundred twenty million, three hundred fifty-three thousand, nine hundred eighty".