420994130 has 8 divisors (see below), whose sum is σ = 757789452. Its totient is φ = 168397648.

The previous prime is 420994117. The next prime is 420994183. The reversal of 420994130 is 31499024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 352650841 + 68343289 = 18779^2 + 8267^2 .

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

It is a Curzon 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, 21049697 + ... + 21049716.

Almost surely, 2^420994130 is an apocalyptic number.

420994130 is a deficient number, since it is larger than the sum of its proper divisors (336795322).

420994130 is a wasteful number, since it uses less digits than its factorization.

420994130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42099420.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 420994130 is about 20518.1414850371. The cubic root of 420994130 is about 749.4776392331.

It can be divided in two parts, 420994 and 130, that added together give a palindrome (421124).

The spelling of 420994130 in words is "four hundred twenty million, nine hundred ninety-four thousand, one hundred thirty".