402434130 has 32 divisors (see below), whose sum is σ = 1103819904. Its totient is φ = 91984896.

The previous prime is 402434111. The next prime is 402434173. The reversal of 402434130 is 31434204.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402434097 and 402434106.

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, 957967 + ... + 958386.

It is an arithmetic number, because the mean of its divisors is an integer number (34494372).

Almost surely, 2^402434130 is an apocalyptic number.

402434130 is an abundant number, since it is smaller than the sum of its proper divisors (701385774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402434130 is a wasteful number, since it uses less digits than its factorization.

402434130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916370.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402434130 is about 20060.7609526658. The cubic root of 402434130 is about 738.2978468893.

Adding to 402434130 its reverse (31434204), we get a palindrome (433868334).

The spelling of 402434130 in words is "four hundred two million, four hundred thirty-four thousand, one hundred thirty".