405970490 has 16 divisors (see below), whose sum is σ = 746295552. Its totient is φ = 158932944.

The previous prime is 405970471. The next prime is 405970501. The reversal of 405970490 is 94079504.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431414 + ... + 432353.

It is an arithmetic number, because the mean of its divisors is an integer number (46643472).

Almost surely, 2^405970490 is an apocalyptic number.

405970490 is a deficient number, since it is larger than the sum of its proper divisors (340325062).

405970490 is a wasteful number, since it uses less digits than its factorization.

405970490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863821.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 405970490 is about 20148.7093879484. The cubic root of 405970490 is about 740.4541222804.

The spelling of 405970490 in words is "four hundred five million, nine hundred seventy thousand, four hundred ninety".