40044230402 has 16 divisors (see below), whose sum is σ = 65888956224. Its totient is φ = 18101358000.

The previous prime is 40044230383. The next prime is 40044230407. The reversal of 40044230402 is 20403244004.

It is a super-2 number, since 2×40044230402² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40044230407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5024174 + ... + 5032137.

It is an arithmetic number, because the mean of its divisors is an integer number (4118059764).

Almost surely, 2^40044230402 is an apocalyptic number.

40044230402 is a deficient number, since it is larger than the sum of its proper divisors (25844725822).

40044230402 is a wasteful number, since it uses less digits than its factorization.

40044230402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056505.

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

Adding to 40044230402 its reverse (20403244004), we get a palindrome (60447474406).

The spelling of 40044230402 in words is "forty billion, forty-four million, two hundred thirty thousand, four hundred two".