29390952140 has 96 divisors (see below), whose sum is σ = 68013195264. Its totient is φ = 10579887360.

The previous prime is 29390952127. The next prime is 29390952187. The reversal of 29390952140 is 4125909392.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 29390952091 and 29390952100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16958714 + ... + 16960446.

It is an arithmetic number, because the mean of its divisors is an integer number (708470784).

Almost surely, 2^29390952140 is an apocalyptic number.

29390952140 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 29390952140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34006597632).

29390952140 is an abundant number, since it is smaller than the sum of its proper divisors (38622243124).

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

29390952140 is a wasteful number, since it uses less digits than its factorization.

29390952140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487 (or 2485 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 29390952140 in words is "twenty-nine billion, three hundred ninety million, nine hundred fifty-two thousand, one hundred forty".