406862644 has 24 divisors (see below), whose sum is σ = 728784000. Its totient is φ = 198658176.

The previous prime is 406862633. The next prime is 406862711. The reversal of 406862644 is 446268604.

It is a super-2 number, since 2×406862644² = 331074422165341472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 406862597 and 406862606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91644 + ... + 95980.

It is an arithmetic number, because the mean of its divisors is an integer number (30366000).

Almost surely, 2^406862644 is an apocalyptic number.

It is an amenable number.

406862644 is a deficient number, since it is larger than the sum of its proper divisors (321921356).

406862644 is a wasteful number, since it uses less digits than its factorization.

406862644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887 (or 4885 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 406862644 is about 20170.8364724917. The cubic root of 406862644 is about 740.9961286627.

The spelling of 406862644 in words is "four hundred six million, eight hundred sixty-two thousand, six hundred forty-four".