4512990 has 32 divisors (see below), whose sum is σ = 11469600. Its totient is φ = 1132544.

The previous prime is 4512971. The next prime is 4513021. The reversal of 4512990 is 992154.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3915 + ... + 4934.

It is an arithmetic number, because the mean of its divisors is an integer number (358425).

Almost surely, 2^4512990 is an apocalyptic number.

4512990 is an abundant number, since it is smaller than the sum of its proper divisors (6956610).

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

4512990 is a wasteful number, since it uses less digits than its factorization.

4512990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8876.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 4512990 is about 2124.3799095265. The cubic root of 4512990 is about 165.2550692201.

The spelling of 4512990 in words is "four million, five hundred twelve thousand, nine hundred ninety".