45019986 has 24 divisors (see below), whose sum is σ = 98971152. Its totient is φ = 13642200.

The previous prime is 45019973. The next prime is 45020021. The reversal of 45019986 is 68991054.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30280 + ... + 31731.

It is an arithmetic number, because the mean of its divisors is an integer number (4123798).

Almost surely, 2^45019986 is an apocalyptic number.

45019986 is an abundant number, since it is smaller than the sum of its proper divisors (53951166).

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

45019986 is a wasteful number, since it uses less digits than its factorization.

45019986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62038 (or 62027 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 45019986 is about 6709.6934356198. The cubic root of 45019986 is about 355.7419804846.

The spelling of 45019986 in words is "forty-five million, nineteen thousand, nine hundred eighty-six".