1662580404 has 30 divisors (see below), whose sum is σ = 4346314434. Its totient is φ = 554193360.

The previous prime is 1662580327. The next prime is 1662580417. The reversal of 1662580404 is 4040852661.

1662580404 is a `hidden beast` number, since 16 + 62 + 580 + 4 + 0 + 4 = 666.

1662580404 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 919908900 + 742671504 = 30330^2 + 27252^2 .

It is a super-3 number, since 3×1662580404³ (a number of 29 digits) contains 333 as substring.

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

It is a congruent number.

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, 2565387 + ... + 2566034.

Almost surely, 2^1662580404 is an apocalyptic number.

It is an amenable number.

1662580404 is an abundant number, since it is smaller than the sum of its proper divisors (2683734030).

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

1662580404 is a wasteful number, since it uses less digits than its factorization.

1662580404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131437 (or 5131426 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1662580404 is about 40774.7520409383. The cubic root of 1662580404 is about 1184.6613485100.

The spelling of 1662580404 in words is "one billion, six hundred sixty-two million, five hundred eighty thousand, four hundred four".