40001332435 has 24 divisors (see below), whose sum is σ = 52177243536. Its totient is φ = 29418170880.

The previous prime is 40001332433. The next prime is 40001332463. The reversal of 40001332435 is 53423310004.

It is not a de Polignac number, because 40001332435 - 2¹ = 40001332433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40001332433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259756 + ... + 384025.

It is an arithmetic number, because the mean of its divisors is an integer number (2174051814).

Almost surely, 2^40001332435 is an apocalyptic number.

40001332435 is a deficient number, since it is larger than the sum of its proper divisors (12175911101).

40001332435 is a wasteful number, since it uses less digits than its factorization.

40001332435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643863 (or 643846 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 40001332435 its reverse (53423310004), we get a palindrome (93424642439).

The spelling of 40001332435 in words is "forty billion, one million, three hundred thirty-two thousand, four hundred thirty-five".