406498402 has 8 divisors (see below), whose sum is σ = 610555356. Its totient is φ = 202979952.

The previous prime is 406498399. The next prime is 406498427. The reversal of 406498402 is 204894604.

It can be written as a sum of positive squares in 2 ways, for example, as 336759201 + 69739201 = 18351^2 + 8351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 132733 + ... + 135760.

Almost surely, 2^406498402 is an apocalyptic number.

406498402 is a deficient number, since it is larger than the sum of its proper divisors (204056954).

406498402 is a wasteful number, since it uses less digits than its factorization.

406498402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269252.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 406498402 is about 20161.8055243076. The cubic root of 406498402 is about 740.7749381300.

The spelling of 406498402 in words is "four hundred six million, four hundred ninety-eight thousand, four hundred two".