405081602 has 8 divisors (see below), whose sum is σ = 617583612. Its totient is φ = 199220400.

The previous prime is 405081581. The next prime is 405081623. The reversal of 405081602 is 206180504.

It is an interprime number because it is at equal distance from previous prime (405081581) and next prime (405081623).

It can be written as a sum of positive squares in 2 ways, for example, as 364771801 + 40309801 = 19099^2 + 6349^2 .

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

It is a super-2 number, since 2×405081602² = 328182208557772808, which contains 22 as substring.

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, 1660049 + ... + 1660292.

Almost surely, 2^405081602 is an apocalyptic number.

405081602 is a deficient number, since it is larger than the sum of its proper divisors (212502010).

405081602 is a wasteful number, since it uses less digits than its factorization.

405081602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320404.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 405081602 is about 20126.6391133741. The cubic root of 405081602 is about 739.9133097863.

The spelling of 405081602 in words is "four hundred five million, eighty-one thousand, six hundred two".