45021654 has 24 divisors (see below), whose sum is σ = 97670352. Its totient is φ = 14988240.

The previous prime is 45021653. The next prime is 45021673. The reversal of 45021654 is 45612054.

45021654 is a `hidden beast` number, since 4 + 5 + 0 + 2 + 1 + 654 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45021653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26964 + ... + 28584.

It is an arithmetic number, because the mean of its divisors is an integer number (4069598).

Almost surely, 2^45021654 is an apocalyptic number.

45021654 is an abundant number, since it is smaller than the sum of its proper divisors (52648698).

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

45021654 is a wasteful number, since it uses less digits than its factorization.

45021654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172 (or 3169 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 45021654 is about 6709.8177322488. The cubic root of 45021654 is about 355.7463738688.

The spelling of 45021654 in words is "forty-five million, twenty-one thousand, six hundred fifty-four".