45229290 has 32 divisors (see below), whose sum is σ = 108820800. Its totient is φ = 12031104.

The previous prime is 45229271. The next prime is 45229307. The reversal of 45229290 is 9292254.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12061 + ... + 15359.

It is an arithmetic number, because the mean of its divisors is an integer number (3400650).

Almost surely, 2^45229290 is an apocalyptic number.

45229290 is an abundant number, since it is smaller than the sum of its proper divisors (63591510).

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

45229290 is a wasteful number, since it uses less digits than its factorization.

45229290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 45229290 is about 6725.2724851860. The cubic root of 45229290 is about 356.2924258491.

The spelling of 45229290 in words is "forty-five million, two hundred twenty-nine thousand, two hundred ninety".