29493682140 has 192 divisors, whose sum is σ = 93777062400. Its totient is φ = 6866021376.

The previous prime is 29493682133. The next prime is 29493682307. The reversal of 29493682140 is 4128639492.

It is a self number, because there is not a number n which added to its sum of digits gives 29493682140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10950634 + ... + 10953326.

It is an arithmetic number, because the mean of its divisors is an integer number (488422200).

Almost surely, 2^29493682140 is an apocalyptic number.

29493682140 is a gapful number since it is divisible by the number (20) 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 29493682140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46888531200).

29493682140 is an abundant number, since it is smaller than the sum of its proper divisors (64283380260).

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

29493682140 is a wasteful number, since it uses less digits than its factorization.

29493682140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 29493682140 in words is "twenty-nine billion, four hundred ninety-three million, six hundred eighty-two thousand, one hundred forty".