402134330 has 32 divisors (see below), whose sum is σ = 784232064. Its totient is φ = 147583296.

The previous prime is 402134311. The next prime is 402134347. The reversal of 402134330 is 33431204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12449 + ... + 30971.

It is an arithmetic number, because the mean of its divisors is an integer number (24507252).

Almost surely, 2^402134330 is an apocalyptic number.

402134330 is a deficient number, since it is larger than the sum of its proper divisors (382097734).

402134330 is a wasteful number, since it uses less digits than its factorization.

402134330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18710.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 402134330 is about 20053.2872616935. The cubic root of 402134330 is about 738.1144655897.

Adding to 402134330 its reverse (33431204), we get a palindrome (435565534).

The spelling of 402134330 in words is "four hundred two million, one hundred thirty-four thousand, three hundred thirty".