402244332 has 120 divisors (see below), whose sum is σ = 1144421376. Its totient is φ = 109749024.

The previous prime is 402244267. The next prime is 402244373. The reversal of 402244332 is 233442204.

It is a super-2 number, since 2×402244332² = 323601005252252448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 662373 + ... + 662979.

Almost surely, 2^402244332 is an apocalyptic number.

402244332 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402244332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572210688).

402244332 is an abundant number, since it is smaller than the sum of its proper divisors (742177044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402244332 is a wasteful number, since it uses less digits than its factorization.

402244332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 402244332 is about 20056.0298164916. The cubic root of 402244332 is about 738.1817620618.

Adding to 402244332 its reverse (233442204), we get a palindrome (635686536).

The spelling of 402244332 in words is "four hundred two million, two hundred forty-four thousand, three hundred thirty-two".