406512402 has 16 divisors (see below), whose sum is σ = 817895232. Its totient is φ = 134692400.

The previous prime is 406512397. The next prime is 406512409. The reversal of 406512402 is 204215604.

It is not an unprimeable number, because it can be changed into a prime (406512409) 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, 201849 + ... + 203852.

It is an arithmetic number, because the mean of its divisors is an integer number (51118452).

Almost surely, 2^406512402 is an apocalyptic number.

406512402 is an abundant number, since it is smaller than the sum of its proper divisors (411382830).

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

406512402 is a wasteful number, since it uses less digits than its factorization.

406512402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405873.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 406512402 is about 20162.1527124462. The cubic root of 406512402 is about 740.7834422472.

The spelling of 406512402 in words is "four hundred six million, five hundred twelve thousand, four hundred two".