406401692 has 24 divisors (see below), whose sum is σ = 735434112. Its totient is φ = 196300800.

The previous prime is 406401691. The next prime is 406401701. The reversal of 406401692 is 296104604.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406401691) 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 7 ways as a sum of consecutive naturals, for example, 76928 + ... + 82040.

It is an arithmetic number, because the mean of its divisors is an integer number (30643088).

Almost surely, 2^406401692 is an apocalyptic number.

It is an amenable number.

406401692 is a deficient number, since it is larger than the sum of its proper divisors (329032420).

406401692 is a wasteful number, since it uses less digits than its factorization.

406401692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789 (or 5787 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 406401692 is about 20159.4070349304. The cubic root of 406401692 is about 740.7161875700.

The spelling of 406401692 in words is "four hundred six million, four hundred one thousand, six hundred ninety-two".