405676674 has 40 divisors (see below), whose sum is σ = 978945660. Its totient is φ = 124822944.

The previous prime is 405676669. The next prime is 405676703. The reversal of 405676674 is 476676504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 383180625 + 22496049 = 19575^2 + 4743^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 94209 + ... + 98420.

Almost surely, 2^405676674 is an apocalyptic number.

405676674 is an abundant number, since it is smaller than the sum of its proper divisors (573268986).

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

405676674 is a wasteful number, since it uses less digits than its factorization.

405676674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192656 (or 192647 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 405676674 is about 20141.4168816397. The cubic root of 405676674 is about 740.2754477383.

The spelling of 405676674 in words is "four hundred five million, six hundred seventy-six thousand, six hundred seventy-four".