40354251040 has 48 divisors (see below), whose sum is σ = 96280886520. Its totient is φ = 15981875200.

The previous prime is 40354251017. The next prime is 40354251127. The reversal of 40354251040 is 4015245304.

It can be written as a sum of positive squares in 4 ways, for example, as 39886480656 + 467770384 = 199716^2 + 21628^2 .

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, 1232425 + ... + 1264744.

Almost surely, 2^40354251040 is an apocalyptic number.

40354251040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40354251040 is an abundant number, since it is smaller than the sum of its proper divisors (55926635480).

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

40354251040 is a wasteful number, since it uses less digits than its factorization.

40354251040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497285 (or 2497277 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 40354251040 its reverse (4015245304), we get a palindrome (44369496344).

The spelling of 40354251040 in words is "forty billion, three hundred fifty-four million, two hundred fifty-one thousand, forty".