402442192 has 60 divisors (see below), whose sum is σ = 844425120. Its totient is φ = 185286528.

The previous prime is 402442181. The next prime is 402442219. The reversal of 402442192 is 291244204.

It is a self number, because there is not a number n which added to its sum of digits gives 402442192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415693 + ... + 416659.

It is an arithmetic number, because the mean of its divisors is an integer number (14073752).

Almost surely, 2^402442192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402442192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422212560).

402442192 is an abundant number, since it is smaller than the sum of its proper divisors (441982928).

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

402442192 is a wasteful number, since it uses less digits than its factorization.

402442192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 402442192 is about 20060.9618911955. The cubic root of 402442192 is about 738.3027769860.

Adding to 402442192 its reverse (291244204), we get a palindrome (693686396).

It can be divided in two parts, 40244 and 2192, that added together give a square (42436 = 206²).

The spelling of 402442192 in words is "four hundred two million, four hundred forty-two thousand, one hundred ninety-two".