420134692 has 24 divisors (see below), whose sum is σ = 775111680. Its totient is φ = 198962880.

The previous prime is 420134683. The next prime is 420134747. The reversal of 420134692 is 296431024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30217 + ... + 41872.

It is an arithmetic number, because the mean of its divisors is an integer number (32296320).

Almost surely, 2^420134692 is an apocalyptic number.

It is an amenable number.

420134692 is a deficient number, since it is larger than the sum of its proper divisors (354976988).

420134692 is a wasteful number, since it uses less digits than its factorization.

420134692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72171 (or 72169 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 420134692 is about 20497.1874168140. The cubic root of 420134692 is about 748.9672850227.

The spelling of 420134692 in words is "four hundred twenty million, one hundred thirty-four thousand, six hundred ninety-two".