29842621290 has 64 divisors (see below), whose sum is σ = 80207032320. Its totient is φ = 7895361600.

The previous prime is 29842621271. The next prime is 29842621327. The reversal of 29842621290 is 9212624892.

29842621290 is a `hidden beast` number, since 2 + 9 + 8 + 426 + 212 + 9 + 0 = 666.

It is a super-2 number, since 2×29842621290² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 400861 + ... + 469440.

It is an arithmetic number, because the mean of its divisors is an integer number (1253234880).

Almost surely, 2^29842621290 is an apocalyptic number.

29842621290 is an abundant number, since it is smaller than the sum of its proper divisors (50364411030).

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

29842621290 is a wasteful number, since it uses less digits than its factorization.

29842621290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870444 (or 870438 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 29842621290 in words is "twenty-nine billion, eight hundred forty-two million, six hundred twenty-one thousand, two hundred ninety".