402444196 has 96 divisors (see below), whose sum is σ = 940149504. Its totient is φ = 145920000.

The previous prime is 402444193. The next prime is 402444239. The reversal of 402444196 is 691444204.

It is a super-2 number, since 2×402444196² = 323922661788172832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (402444193) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 528456 + ... + 529216.

It is an arithmetic number, because the mean of its divisors is an integer number (9793224).

Almost surely, 2^402444196 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 402444196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470074752).

402444196 is an abundant number, since it is smaller than the sum of its proper divisors (537705308).

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

402444196 is a wasteful number, since it uses less digits than its factorization.

402444196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 402444196 is about 20061.0118388879. The cubic root of 402444196 is about 738.3040024674.

The spelling of 402444196 in words is "four hundred two million, four hundred forty-four thousand, one hundred ninety-six".