29774229940 has 96 divisors (see below), whose sum is σ = 77135514624. Its totient is φ = 9400942080.

The previous prime is 29774229887. The next prime is 29774229959. The reversal of 29774229940 is 4992247792.

It is a congruent number.

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, 765442 + ... + 803398.

It is an arithmetic number, because the mean of its divisors is an integer number (803494944).

Almost surely, 2^29774229940 is an apocalyptic number.

29774229940 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 29774229940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38567757312).

29774229940 is an abundant number, since it is smaller than the sum of its proper divisors (47361284684).

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

29774229940 is a wasteful number, since it uses less digits than its factorization.

29774229940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38417 (or 38415 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 29774229940 in words is "twenty-nine billion, seven hundred seventy-four million, two hundred twenty-nine thousand, nine hundred forty".