45942190 has 32 divisors (see below), whose sum is σ = 99486720. Its totient is φ = 14922144.

The previous prime is 45942167. The next prime is 45942191. The reversal of 45942190 is 9124954.

It is a super-2 number, since 2×45942190² = 4221369643992200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45942191) 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, 15942 + ... + 18601.

It is an arithmetic number, because the mean of its divisors is an integer number (3108960).

Almost surely, 2^45942190 is an apocalyptic number.

45942190 is an abundant number, since it is smaller than the sum of its proper divisors (53544530).

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

45942190 is a wasteful number, since it uses less digits than its factorization.

45942190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34576.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 45942190 is about 6778.0668335448. The cubic root of 45942190 is about 358.1546256306.

The spelling of 45942190 in words is "forty-five million, nine hundred forty-two thousand, one hundred ninety".