45952290 has 24 divisors (see below), whose sum is σ = 119476188. Its totient is φ = 12253920.

The previous prime is 45952289. The next prime is 45952297. The reversal of 45952290 is 9225954.

It is a happy number.

45952290 is a `hidden beast` number, since 45 + 9 + 522 + 90 = 666.

45952290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45603009 + 349281 = 6753^2 + 591^2 .

It is a super-2 number, since 2×45952290² = 4223225912488200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45952297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255201 + ... + 255380.

Almost surely, 2^45952290 is an apocalyptic number.

45952290 is an abundant number, since it is smaller than the sum of its proper divisors (73523898).

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

45952290 is a wasteful number, since it uses less digits than its factorization.

45952290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510594 (or 510591 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 45952290 is about 6778.8118427937. The cubic root of 45952290 is about 358.1808694576.

The spelling of 45952290 in words is "forty-five million, nine hundred fifty-two thousand, two hundred ninety".