406006564 has 6 divisors (see below), whose sum is σ = 710511494. Its totient is φ = 203003280.

The previous prime is 406006541. The next prime is 406006571. The reversal of 406006564 is 465600604.

It can be written as a sum of positive squares in only one way, i.e., 271260900 + 134745664 = 16470^2 + 11608^2 .

It is a super-2 number, since 2×406006564² = 329682660022172192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50750817 + ... + 50750824.

Almost surely, 2^406006564 is an apocalyptic number.

It is an amenable number.

406006564 is a deficient number, since it is larger than the sum of its proper divisors (304504930).

406006564 is a wasteful number, since it uses less digits than its factorization.

406006564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101501645 (or 101501643 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 406006564 is about 20149.6045618766. The cubic root of 406006564 is about 740.4760535550.

The spelling of 406006564 in words is "four hundred six million, six thousand, five hundred sixty-four".