45405190 has 16 divisors (see below), whose sum is σ = 81840528. Its totient is φ = 18137376.

The previous prime is 45405187. The next prime is 45405203. The reversal of 45405190 is 9150454.

It is a super-2 number, since 2×45405190² = 4123262557872200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5869 + ... + 11191.

It is an arithmetic number, because the mean of its divisors is an integer number (5115033).

Almost surely, 2^45405190 is an apocalyptic number.

45405190 is a deficient number, since it is larger than the sum of its proper divisors (36435338).

45405190 is a wasteful number, since it uses less digits than its factorization.

45405190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 45405190 is about 6738.3373320130. The cubic root of 45405190 is about 356.7537107648.

It can be divided in two parts, 4540 and 5190, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 45405190 in words is "forty-five million, four hundred five thousand, one hundred ninety".