920456 has 8 divisors (see below), whose sum is σ = 1725870. Its totient is φ = 460224.

The previous prime is 920443. The next prime is 920467. The reversal of 920456 is 654029.

It can be written as a sum of positive squares in only one way, i.e., 902500 + 17956 = 950^2 + 134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-6 number, since 6×920456⁶ (a number of 37 digits) contains 666666 as substring.

It is a congruent number.

It is an unprimeable number.

920456 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57521 + ... + 57536.

2⁹²⁰⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

920456 is a deficient number, since it is larger than the sum of its proper divisors (805414).

920456 is a wasteful number, since it uses less digits than its factorization.

920456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115063 (or 115059 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 920456 is about 959.4039816469. The cubic root of 920456 is about 97.2749488266.

The spelling of 920456 in words is "nine hundred twenty thousand, four hundred fifty-six".