1604213415 has 96 divisors (see below), whose sum is σ = 3542123520. Its totient is φ = 653847552.

The previous prime is 1604213323. The next prime is 1604213431. The reversal of 1604213415 is 5143124061.

It is a happy number.

1604213415 is a `hidden beast` number, since 1 + 604 + 2 + 13 + 41 + 5 = 666.

It is not a de Polignac number, because 1604213415 - 2⁸ = 1604213159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93862 + ... + 109628.

It is an arithmetic number, because the mean of its divisors is an integer number (36897120).

Almost surely, 2^1604213415 is an apocalyptic number.

1604213415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1604213415 is an abundant number, since it is smaller than the sum of its proper divisors (1937910105).

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

1604213415 is a wasteful number, since it uses less digits than its factorization.

1604213415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15821 (or 15818 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1604213415 is about 40052.6330595131. The cubic root of 1604213415 is about 1170.6328704079.

Adding to 1604213415 its reverse (5143124061), we get a palindrome (6747337476).

The spelling of 1604213415 in words is "one billion, six hundred four million, two hundred thirteen thousand, four hundred fifteen".