405497964 has 24 divisors (see below), whose sum is σ = 946516480. Its totient is φ = 135115344.

The previous prime is 405497959. The next prime is 405498001. The reversal of 405497964 is 469794504.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41457 + ... + 50295.

Almost surely, 2^405497964 is an apocalyptic number.

It is an amenable number.

405497964 is an abundant number, since it is smaller than the sum of its proper divisors (541018516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405497964 is a wasteful number, since it uses less digits than its factorization.

405497964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12669 (or 12667 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 405497964 is about 20136.9800119084. The cubic root of 405497964 is about 740.1667289278.

The spelling of 405497964 in words is "four hundred five million, four hundred ninety-seven thousand, nine hundred sixty-four".