40040103432 has 192 divisors, whose sum is σ = 117598314240. Its totient is φ = 11327232000.

The previous prime is 40040103431. The next prime is 40040103457. The reversal of 40040103432 is 23430104004.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 40040103399 and 40040103408.

It is not an unprimeable number, because it can be changed into a prime (40040103431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92900257 + ... + 92900687.

It is an arithmetic number, because the mean of its divisors is an integer number (612491220).

Almost surely, 2^40040103432 is an apocalyptic number.

40040103432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40040103432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58799157120).

40040103432 is an abundant number, since it is smaller than the sum of its proper divisors (77558210808).

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

40040103432 is a wasteful number, since it uses less digits than its factorization.

40040103432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40040103432 its reverse (23430104004), we get a palindrome (63470207436).

The spelling of 40040103432 in words is "forty billion, forty million, one hundred three thousand, four hundred thirty-two".