29420489520 has 200 divisors, whose sum is σ = 102611155680. Its totient is φ = 7812495360.

The previous prime is 29420489489. The next prime is 29420489543. The reversal of 29420489520 is 2598402492.

29420489520 is a `hidden beast` number, since 2 + 9 + 42 + 0 + 4 + 89 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1552261 + ... + 1571099.

Almost surely, 2^29420489520 is an apocalyptic number.

29420489520 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 29420489520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51305577840).

29420489520 is an abundant number, since it is smaller than the sum of its proper divisors (73190666160).

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

29420489520 is a wasteful number, since it uses less digits than its factorization.

29420489520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19105 (or 19090 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 29420489520 in words is "twenty-nine billion, four hundred twenty million, four hundred eighty-nine thousand, five hundred twenty".