40374040040 has 32 divisors (see below), whose sum is σ = 90910476360. Its totient is φ = 16137369600.

The previous prime is 40374040037. The next prime is 40374040079. The reversal of 40374040040 is 4004047304.

It can be written as a sum of positive squares in 4 ways, for example, as 38991241444 + 1382798596 = 197462^2 + 37186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40374039991 and 40374040009.

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, 329201 + ... + 434880.

Almost surely, 2^40374040040 is an apocalyptic number.

40374040040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40374040040 is an abundant number, since it is smaller than the sum of its proper divisors (50536436320).

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

40374040040 is a wasteful number, since it uses less digits than its factorization.

40374040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765413 (or 765409 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

Adding to 40374040040 its reverse (4004047304), we get a palindrome (44378087344).

The spelling of 40374040040 in words is "forty billion, three hundred seventy-four million, forty thousand, forty".