427221502 has 8 divisors (see below), whose sum is σ = 640972800. Its totient is φ = 213563904.

The previous prime is 427221497. The next prime is 427221511. The reversal of 427221502 is 205122724.

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

It is a super-2 number, since 2×427221502² = 365036423542272008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10627 + ... + 31102.

It is an arithmetic number, because the mean of its divisors is an integer number (80121600).

Almost surely, 2^427221502 is an apocalyptic number.

427221502 is a deficient number, since it is larger than the sum of its proper divisors (213751298).

427221502 is a wasteful number, since it uses less digits than its factorization.

427221502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46850.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 427221502 is about 20669.3372414308. The cubic root of 427221502 is about 753.1550067806.

The spelling of 427221502 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, five hundred two".