406402632 has 48 divisors (see below), whose sum is σ = 1126279440. Its totient is φ = 132316128.

The previous prime is 406402597. The next prime is 406402649. The reversal of 406402632 is 236204604.

It is a junction number, because it is equal to n+sod(n) for n = 406402596 and 406402605.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62538 + ... + 68729.

It is an arithmetic number, because the mean of its divisors is an integer number (23464155).

Almost surely, 2^406402632 is an apocalyptic number.

It is an amenable number.

406402632 is an abundant number, since it is smaller than the sum of its proper divisors (719876808).

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

406402632 is a wasteful number, since it uses less digits than its factorization.

406402632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131322 (or 131315 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 406402632 is about 20159.4303490947. The cubic root of 406402632 is about 740.7167586574.

The spelling of 406402632 in words is "four hundred six million, four hundred two thousand, six hundred thirty-two".