421252994 has 8 divisors (see below), whose sum is σ = 635154060. Its totient is φ = 209534976.

The previous prime is 421252961. The next prime is 421252999. The reversal of 421252994 is 499252124.

It can be written as a sum of positive squares in 2 ways, for example, as 418407025 + 2845969 = 20455^2 + 1687^2 .

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

It is not an unprimeable number, because it can be changed into a prime (421252999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545279 + ... + 546050.

Almost surely, 2^421252994 is an apocalyptic number.

421252994 is a deficient number, since it is larger than the sum of its proper divisors (213901066).

421252994 is a wasteful number, since it uses less digits than its factorization.

421252994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091524.

The product of its digits is 51840, while the sum is 38.

The square root of 421252994 is about 20524.4486893071. The cubic root of 421252994 is about 749.6312225525.

The spelling of 421252994 in words is "four hundred twenty-one million, two hundred fifty-two thousand, nine hundred ninety-four".