45649419 has 16 divisors (see below), whose sum is σ = 64848000. Its totient is φ = 28480896.

The previous prime is 45649399. The next prime is 45649427. The reversal of 45649419 is 91494654.

It is not a de Polignac number, because 45649419 - 2⁹ = 45648907 is a prime.

It is a super-2 number, since 2×45649419² = 4167738910075122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45649459) 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, 94 + ... + 9555.

It is an arithmetic number, because the mean of its divisors is an integer number (4053000).

Almost surely, 2^45649419 is an apocalyptic number.

45649419 is a deficient number, since it is larger than the sum of its proper divisors (19198581).

45649419 is a wasteful number, since it uses less digits than its factorization.

45649419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9754.

The product of its digits is 155520, while the sum is 42.

The square root of 45649419 is about 6756.4353767353. The cubic root of 45649419 is about 357.3922122764.

The spelling of 45649419 in words is "forty-five million, six hundred forty-nine thousand, four hundred nineteen".