402154406 has 16 divisors (see below), whose sum is σ = 620688960. Its totient is φ = 195278400.

The previous prime is 402154393. The next prime is 402154429. The reversal of 402154406 is 604451204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37331 + ... + 46881.

It is an arithmetic number, because the mean of its divisors is an integer number (38793060).

Almost surely, 2^402154406 is an apocalyptic number.

402154406 is a deficient number, since it is larger than the sum of its proper divisors (218534554).

402154406 is a wasteful number, since it uses less digits than its factorization.

402154406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10159.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 402154406 is about 20053.7878217558. The cubic root of 402154406 is about 738.1267484997.

The spelling of 402154406 in words is "four hundred two million, one hundred fifty-four thousand, four hundred six".