29040840432 has 60 divisors (see below), whose sum is σ = 81638566464. Its totient is φ = 9636860160.

The previous prime is 29040840419. The next prime is 29040840443. The reversal of 29040840432 is 23404804092.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420069 + ... + 484292.

Almost surely, 2^29040840432 is an apocalyptic number.

It is an amenable number.

29040840432 is an abundant number, since it is smaller than the sum of its proper divisors (52597726032).

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

29040840432 is a wasteful number, since it uses less digits than its factorization.

29040840432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904598 (or 904589 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 29040840432 in words is "twenty-nine billion, forty million, eight hundred forty thousand, four hundred thirty-two".