920641484 has 12 divisors (see below), whose sum is σ = 1841283024. Its totient is φ = 394560624.

The previous prime is 920641457. The next prime is 920641489. The reversal of 920641484 is 484146029.

920641484 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (920641489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16439999 + ... + 16440054.

It is an arithmetic number, because the mean of its divisors is an integer number (153440252).

Almost surely, 2^920641484 is an apocalyptic number.

It is an amenable number.

920641484 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

920641484 is a wasteful number, since it uses less digits than its factorization.

920641484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32880064 (or 32880062 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 920641484 is about 30342.0744841219. The cubic root of 920641484 is about 972.8148244865.

The spelling of 920641484 in words is "nine hundred twenty million, six hundred forty-one thousand, four hundred eighty-four".