45019812 has 24 divisors (see below), whose sum is σ = 108435712. Its totient is φ = 14522400.

The previous prime is 45019811. The next prime is 45019817. The reversal of 45019812 is 21891054.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 45019812.

It is not an unprimeable number, because it can be changed into a prime (45019811) 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, 60139 + ... + 60882.

Almost surely, 2^45019812 is an apocalyptic number.

It is an amenable number.

45019812 is an abundant number, since it is smaller than the sum of its proper divisors (63415900).

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

45019812 is a wasteful number, since it uses less digits than its factorization.

45019812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121059 (or 121057 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 45019812 is about 6709.6804692921. The cubic root of 45019812 is about 355.7415221756.

The spelling of 45019812 in words is "forty-five million, nineteen thousand, eight hundred twelve".