402213244 has 12 divisors (see below), whose sum is σ = 704718000. Its totient is φ = 200865248.

The previous prime is 402213233. The next prime is 402213277. The reversal of 402213244 is 442312204.

It is a happy number.

It is a congruent 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, 56569 + ... + 63280.

It is an arithmetic number, because the mean of its divisors is an integer number (58726500).

Almost surely, 2^402213244 is an apocalyptic number.

It is an amenable number.

402213244 is a deficient number, since it is larger than the sum of its proper divisors (302504756).

402213244 is a wasteful number, since it uses less digits than its factorization.

402213244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120692 (or 120690 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 402213244 is about 20055.2547727522. The cubic root of 402213244 is about 738.1627444448.

Adding to 402213244 its reverse (442312204), we get a palindrome (844525448).

The spelling of 402213244 in words is "four hundred two million, two hundred thirteen thousand, two hundred forty-four".