402345544 has 16 divisors (see below), whose sum is σ = 767185200. Its totient is φ = 197762832.

The previous prime is 402345529. The next prime is 402345551. The reversal of 402345544 is 445543204.

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 3 ways as a sum of consecutive naturals, for example, 425742 + ... + 426685.

It is an arithmetic number, because the mean of its divisors is an integer number (47949075).

Almost surely, 2^402345544 is an apocalyptic number.

It is an amenable number.

402345544 is a deficient number, since it is larger than the sum of its proper divisors (364839656).

402345544 is a wasteful number, since it uses less digits than its factorization.

402345544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852492 (or 852488 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 402345544 is about 20058.5528889798. The cubic root of 402345544 is about 738.2436701949.

Adding to 402345544 its reverse (445543204), we get a palindrome (847888748).

The spelling of 402345544 in words is "four hundred two million, three hundred forty-five thousand, five hundred forty-four".