402041444 has 24 divisors (see below), whose sum is σ = 846404160. Its totient is φ = 163234656.

The previous prime is 402041383. The next prime is 402041461. The reversal of 402041444 is 444140204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377327 + ... + 378390.

It is an arithmetic number, because the mean of its divisors is an integer number (35266840).

Almost surely, 2^402041444 is an apocalyptic number.

It is an amenable number.

402041444 is an abundant number, since it is smaller than the sum of its proper divisors (444362716).

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

402041444 is a wasteful number, since it uses less digits than its factorization.

402041444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755747 (or 755745 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 402041444 is about 20050.9711485504. The cubic root of 402041444 is about 738.0576307009.

Adding to 402041444 its reverse (444140204), we get a palindrome (846181648).

The spelling of 402041444 in words is "four hundred two million, forty-one thousand, four hundred forty-four".