22440040402 has 32 divisors (see below), whose sum is σ = 38413368000. Its totient is φ = 9745956288.

The previous prime is 22440040387. The next prime is 22440040411. The reversal of 22440040402 is 20404004422.

It is a super-4 number, since 4×22440040402⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78828 + ... + 226039.

It is an arithmetic number, because the mean of its divisors is an integer number (1200417750).

Almost surely, 2^22440040402 is an apocalyptic number.

22440040402 is a deficient number, since it is larger than the sum of its proper divisors (15973327598).

22440040402 is a wasteful number, since it uses less digits than its factorization.

22440040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305050.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22440040402 its reverse (20404004422), we get a palindrome (42844044824).

The spelling of 22440040402 in words is "twenty-two billion, four hundred forty million, forty thousand, four hundred two".