406497716 has 24 divisors (see below), whose sum is σ = 722087520. Its totient is φ = 200210400.

The previous prime is 406497709. The next prime is 406497719. The reversal of 406497716 is 617794604.

It is a super-2 number, since 2×406497716² = 330480786226433312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406497719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70046 + ... + 75626.

It is an arithmetic number, because the mean of its divisors is an integer number (30086980).

Almost surely, 2^406497716 is an apocalyptic number.

It is an amenable number.

406497716 is a deficient number, since it is larger than the sum of its proper divisors (315589804).

406497716 is a wasteful number, since it uses less digits than its factorization.

406497716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855 (or 5853 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 406497716 is about 20161.7885119351. The cubic root of 406497716 is about 740.7745214233.

The spelling of 406497716 in words is "four hundred six million, four hundred ninety-seven thousand, seven hundred sixteen".