45490992 has 20 divisors (see below), whose sum is σ = 117518520. Its totient is φ = 15163648.

The previous prime is 45490979. The next prime is 45490993. The reversal of 45490992 is 29909454.

It is not an unprimeable number, because it can be changed into a prime (45490993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473817 + ... + 473912.

It is an arithmetic number, because the mean of its divisors is an integer number (5875926).

Almost surely, 2^45490992 is an apocalyptic number.

It is an amenable number.

45490992 is an abundant number, since it is smaller than the sum of its proper divisors (72027528).

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

45490992 is a wasteful number, since it uses less digits than its factorization.

45490992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947740 (or 947734 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 45490992 is about 6744.7010311800. The cubic root of 45490992 is about 356.9782880345.

The spelling of 45490992 in words is "forty-five million, four hundred ninety thousand, nine hundred ninety-two".