415487990 has 64 divisors (see below), whose sum is σ = 816480000. Its totient is φ = 151627776.

The previous prime is 415487977. The next prime is 415487999. The reversal of 415487990 is 99784514.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415487999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1190336 + ... + 1190684.

It is an arithmetic number, because the mean of its divisors is an integer number (12757500).

Almost surely, 2^415487990 is an apocalyptic number.

415487990 is a deficient number, since it is larger than the sum of its proper divisors (400992010).

415487990 is a wasteful number, since it uses less digits than its factorization.

415487990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 415487990 is about 20383.5225120684. The cubic root of 415487990 is about 746.1958423212.

The spelling of 415487990 in words is "four hundred fifteen million, four hundred eighty-seven thousand, nine hundred ninety".