29849976420 has 144 divisors (see below), whose sum is σ = 91981667904. Its totient is φ = 7227475200.

The previous prime is 29849976419. The next prime is 29849976427. The reversal of 29849976420 is 2467994892.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (29849976427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7410447 + ... + 7414473.

Almost surely, 2^29849976420 is an apocalyptic number.

29849976420 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 29849976420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45990833952).

29849976420 is an abundant number, since it is smaller than the sum of its proper divisors (62131691484).

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

29849976420 is a wasteful number, since it uses less digits than its factorization.

29849976420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5082 (or 5069 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 29849976420 in words is "twenty-nine billion, eight hundred forty-nine million, nine hundred seventy-six thousand, four hundred twenty".