406708990 has 16 divisors (see below), whose sum is σ = 732557520. Its totient is φ = 162576640.

The previous prime is 406708979. The next prime is 406709011. The reversal of 406708990 is 99807604.

It is a congruent 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, 3630 + ... + 28750.

It is an arithmetic number, because the mean of its divisors is an integer number (45784845).

Almost surely, 2^406708990 is an apocalyptic number.

406708990 is a deficient number, since it is larger than the sum of its proper divisors (325848530).

406708990 is a wasteful number, since it uses less digits than its factorization.

406708990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26747.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 406708990 is about 20167.0272970510. The cubic root of 406708990 is about 740.9028364450.

The spelling of 406708990 in words is "four hundred six million, seven hundred eight thousand, nine hundred ninety".