40244430040 has 32 divisors (see below), whose sum is σ = 90557721360. Its totient is φ = 16096393600.

The previous prime is 40244430029. The next prime is 40244430053. The reversal of 40244430040 is 4003444204.

It is a super-2 number, since 2×40244430040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40244429987 and 40244430014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521130 + ... + 593350.

Almost surely, 2^40244430040 is an apocalyptic number.

40244430040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40244430040 is an abundant number, since it is smaller than the sum of its proper divisors (50313291320).

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

40244430040 is a wasteful number, since it uses less digits than its factorization.

40244430040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86163 (or 86159 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 40244430040 its reverse (4003444204), we get a palindrome (44247874244).

The spelling of 40244430040 in words is "forty billion, two hundred forty-four million, four hundred thirty thousand, forty".