440022402 has 32 divisors (see below), whose sum is σ = 993864960. Its totient is φ = 144268560.

The previous prime is 440022391. The next prime is 440022409. The reversal of 440022402 is 204220044.

440022402 is a `hidden beast` number, since 440 + 0 + 224 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (440022409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63498 + ... + 70085.

It is an arithmetic number, because the mean of its divisors is an integer number (31058280).

Almost surely, 2^440022402 is an apocalyptic number.

440022402 is an abundant number, since it is smaller than the sum of its proper divisors (553842558).

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

440022402 is a wasteful number, since it uses less digits than its factorization.

440022402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133655 (or 133649 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 440022402 is about 20976.7109433295. The cubic root of 440022402 is about 760.6034000758.

Adding to 440022402 its reverse (204220044), we get a palindrome (644242446).

The spelling of 440022402 in words is "four hundred forty million, twenty-two thousand, four hundred two".