45569490 has 32 divisors (see below), whose sum is σ = 110690496. Its totient is φ = 12004800.

The previous prime is 45569479. The next prime is 45569497. The reversal of 45569490 is 9496554.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45569497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6661 + ... + 11640.

It is an arithmetic number, because the mean of its divisors is an integer number (3459078).

Almost surely, 2^45569490 is an apocalyptic number.

45569490 is an abundant number, since it is smaller than the sum of its proper divisors (65121006).

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

45569490 is a wasteful number, since it uses less digits than its factorization.

45569490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18394.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 45569490 is about 6750.5177579205. The cubic root of 45569490 is about 357.1835006698.

The spelling of 45569490 in words is "forty-five million, five hundred sixty-nine thousand, four hundred ninety".