402044452 has 6 divisors (see below), whose sum is σ = 703577798. Its totient is φ = 201022224.

The previous prime is 402044449. The next prime is 402044471. The reversal of 402044452 is 254440204.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 377680356 + 24364096 = 19434^2 + 4936^2 .

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 as a sum of consecutive naturals, namely, 50255553 + ... + 50255560.

Almost surely, 2^402044452 is an apocalyptic number.

It is an amenable number.

402044452 is a deficient number, since it is larger than the sum of its proper divisors (301533346).

402044452 is a wasteful number, since it uses less digits than its factorization.

402044452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100511117 (or 100511115 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 402044452 is about 20051.0461572458. The cubic root of 402044452 is about 738.0594713668.

Adding to 402044452 its reverse (254440204), we get a palindrome (656484656).

The spelling of 402044452 in words is "four hundred two million, forty-four thousand, four hundred fifty-two".