1604552652 has 30 divisors (see below), whose sum is σ = 4194618428. Its totient is φ = 534850776.

The previous prime is 1604552639. The next prime is 1604552689. The reversal of 1604552652 is 2562554061.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2475838 + ... + 2476485.

Almost surely, 2^1604552652 is an apocalyptic number.

1604552652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1604552652 is an abundant number, since it is smaller than the sum of its proper divisors (2590065776).

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

1604552652 is a wasteful number, since it uses less digits than its factorization.

1604552652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952339 (or 4952328 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 1604552652 is about 40056.8677257721. The cubic root of 1604552652 is about 1170.7153810410.

The spelling of 1604552652 in words is "one billion, six hundred four million, five hundred fifty-two thousand, six hundred fifty-two".