901920 has 48 divisors (see below), whose sum is σ = 2842560. Its totient is φ = 240384.

The previous prime is 901919. The next prime is 901931. The reversal of 901920 is 29109.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (59220).

2⁹⁰¹⁹²⁰ is an apocalyptic number.

It is an amenable number.

901920 is an abundant number, since it is smaller than the sum of its proper divisors (1940640).

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

901920 is a wasteful number, since it uses less digits than its factorization.

901920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 901920 is about 949.6946877813. The cubic root of 901920 is about 96.6175467185.

The spelling of 901920 in words is "nine hundred one thousand, nine hundred twenty".