40043253120 has 128 divisors (see below), whose sum is σ = 137456252640. Its totient is φ = 9856794624.

The previous prime is 40043253101. The next prime is 40043253167. The reversal of 40043253120 is 2135234004.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 777189 + ... + 827108.

Almost surely, 2^40043253120 is an apocalyptic number.

40043253120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40043253120 is an abundant number, since it is smaller than the sum of its proper divisors (97412999520).

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

40043253120 is a wasteful number, since it uses less digits than its factorization.

40043253120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604332 (or 1604320 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 40043253120 its reverse (2135234004), we get a palindrome (42178487124).

The spelling of 40043253120 in words is "forty billion, forty-three million, two hundred fifty-three thousand, one hundred twenty".