402042134 has 8 divisors (see below), whose sum is σ = 649452720. Its totient is φ = 185557896.

The previous prime is 402042127. The next prime is 402042149. The reversal of 402042134 is 431240204.

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

It is a super-2 number, since 2×402042134² = 323275755022547912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7731554 + ... + 7731605.

It is an arithmetic number, because the mean of its divisors is an integer number (81181590).

Almost surely, 2^402042134 is an apocalyptic number.

402042134 is a deficient number, since it is larger than the sum of its proper divisors (247410586).

402042134 is a wasteful number, since it uses less digits than its factorization.

402042134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15463174.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 402042134 is about 20050.9883546921. The cubic root of 402042134 is about 738.0580529290.

Adding to 402042134 its reverse (431240204), we get a palindrome (833282338).

The spelling of 402042134 in words is "four hundred two million, forty-two thousand, one hundred thirty-four".