45919190 has 16 divisors (see below), whose sum is σ = 83788128. Its totient is φ = 18115776.

The previous prime is 45919189. The next prime is 45919199. The reversal of 45919190 is 9191954.

It is a super-2 number, since 2×45919190² = 4217144020512200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45919199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30722 + ... + 32181.

It is an arithmetic number, because the mean of its divisors is an integer number (5236758).

Almost surely, 2^45919190 is an apocalyptic number.

45919190 is a deficient number, since it is larger than the sum of its proper divisors (37868938).

45919190 is a wasteful number, since it uses less digits than its factorization.

45919190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62983.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 45919190 is about 6776.3699721901. The cubic root of 45919190 is about 358.0948481042.

The spelling of 45919190 in words is "forty-five million, nine hundred nineteen thousand, one hundred ninety".