402442302 has 16 divisors (see below), whose sum is σ = 808496640. Its totient is φ = 133545432.

The previous prime is 402442297. The next prime is 402442307. The reversal of 402442302 is 203244204.

It is an interprime number because it is at equal distance from previous prime (402442297) and next prime (402442307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402442307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149052 + ... + 151727.

It is an arithmetic number, because the mean of its divisors is an integer number (50531040).

Almost surely, 2^402442302 is an apocalyptic number.

402442302 is an abundant number, since it is smaller than the sum of its proper divisors (406054338).

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

402442302 is a wasteful number, since it uses less digits than its factorization.

402442302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301007.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 402442302 is about 20060.9646328386. The cubic root of 402442302 is about 738.3028442530.

Adding to 402442302 its reverse (203244204), we get a palindrome (605686506).

The spelling of 402442302 in words is "four hundred two million, four hundred forty-two thousand, three hundred two".