406958512490 has 16 divisors (see below), whose sum is σ = 732653110152. Its totient is φ = 162755007744.

The previous prime is 406958512427. The next prime is 406958512517. The reversal of 406958512490 is 94215859604.

It is a Cunningham number, because it is equal to 637933²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 146504452081 + 260454060409 = 382759^2 + 510347^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3489419 + ... + 3604158.

Almost surely, 2^406958512490 is an apocalyptic number.

406958512490 is a deficient number, since it is larger than the sum of its proper divisors (325694597662).

406958512490 is a wasteful number, since it uses less digits than its factorization.

406958512490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099321.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 406958512490 in words is "four hundred six billion, nine hundred fifty-eight million, five hundred twelve thousand, four hundred ninety".