405576242 has 24 divisors (see below), whose sum is σ = 680287440. Its totient is φ = 180809280.

The previous prime is 405576233. The next prime is 405576253. The reversal of 405576242 is 242675504.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7484 + ... + 29447.

It is an arithmetic number, because the mean of its divisors is an integer number (28345310).

Almost surely, 2^405576242 is an apocalyptic number.

405576242 is a deficient number, since it is larger than the sum of its proper divisors (274711198).

405576242 is a wasteful number, since it uses less digits than its factorization.

405576242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36986 (or 36969 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 405576242 is about 20138.9235561387. The cubic root of 405576242 is about 740.2143535347.

The spelling of 405576242 in words is "four hundred five million, five hundred seventy-six thousand, two hundred forty-two".