29940907220 has 48 divisors (see below), whose sum is σ = 71964547200. Its totient is φ = 10250258304.

The previous prime is 29940907201. The next prime is 29940907223. The reversal of 29940907220 is 2270904992.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29940907223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63170 + ... + 252729.

It is an arithmetic number, because the mean of its divisors is an integer number (1499261400).

Almost surely, 2^29940907220 is an apocalyptic number.

29940907220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29940907220 is an abundant number, since it is smaller than the sum of its proper divisors (42023639980).

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

29940907220 is a wasteful number, since it uses less digits than its factorization.

29940907220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316592 (or 316590 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 29940907220 in words is "twenty-nine billion, nine hundred forty million, nine hundred seven thousand, two hundred twenty".