402312134 has 8 divisors (see below), whose sum is σ = 689677968. Its totient is φ = 172419480.

The previous prime is 402312121. The next prime is 402312173. The reversal of 402312134 is 431213204.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14368277 + ... + 14368304.

It is an arithmetic number, because the mean of its divisors is an integer number (86209746).

Almost surely, 2^402312134 is an apocalyptic number.

402312134 is a deficient number, since it is larger than the sum of its proper divisors (287365834).

402312134 is a wasteful number, since it uses less digits than its factorization.

402312134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28736590.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402312134 is about 20057.7200598672. The cubic root of 402312134 is about 738.2232355179.

Adding to 402312134 its reverse (431213204), we get a palindrome (833525338).

The spelling of 402312134 in words is "four hundred two million, three hundred twelve thousand, one hundred thirty-four".