1604653642 has 8 divisors (see below), whose sum is σ = 2408335776. Its totient is φ = 801875052.

The previous prime is 1604653639. The next prime is 1604653679. The reversal of 1604653642 is 2463564061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221428 + ... + 228559.

It is an arithmetic number, because the mean of its divisors is an integer number (301041972).

Almost surely, 2^1604653642 is an apocalyptic number.

1604653642 is a deficient number, since it is larger than the sum of its proper divisors (803682134).

1604653642 is a wasteful number, since it uses less digits than its factorization.

1604653642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451772.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1604653642 is about 40058.1282887756. The cubic root of 1604653642 is about 1170.7399420021.

The spelling of 1604653642 in words is "one billion, six hundred four million, six hundred fifty-three thousand, six hundred forty-two".