406788632 has 16 divisors (see below), whose sum is σ = 802872600. Its totient is φ = 192689280.

The previous prime is 406788623. The next prime is 406788637. The reversal of 406788632 is 236887604.

It is a super-2 number, since 2×406788632² = 330953982248862848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406788637) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1337969 + ... + 1338272.

Almost surely, 2^406788632 is an apocalyptic number.

It is an amenable number.

406788632 is a deficient number, since it is larger than the sum of its proper divisors (396083968).

406788632 is a wasteful number, since it uses less digits than its factorization.

406788632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676266 (or 2676262 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 406788632 is about 20169.0017601269. The cubic root of 406788632 is about 740.9511946355.

The spelling of 406788632 in words is "four hundred six million, seven hundred eighty-eight thousand, six hundred thirty-two".