402423044 has 6 divisors (see below), whose sum is σ = 704240334. Its totient is φ = 201211520.

The previous prime is 402423037. The next prime is 402423067. The reversal of 402423044 is 440324204.

It can be written as a sum of positive squares in only one way, i.e., 265298944 + 137124100 = 16288^2 + 11710^2 .

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, 50302877 + ... + 50302884.

It is an arithmetic number, because the mean of its divisors is an integer number (117373389).

Almost surely, 2^402423044 is an apocalyptic number.

It is an amenable number.

402423044 is a deficient number, since it is larger than the sum of its proper divisors (301817290).

402423044 is a wasteful number, since it uses less digits than its factorization.

402423044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100605765 (or 100605763 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 402423044 is about 20060.4846402075. The cubic root of 402423044 is about 738.2910674402.

Adding to 402423044 its reverse (440324204), we get a palindrome (842747248).

The spelling of 402423044 in words is "four hundred two million, four hundred twenty-three thousand, forty-four".