29447020 has 24 divisors (see below), whose sum is σ = 63348768. Its totient is φ = 11491200.

The previous prime is 29447003. The next prime is 29447023. The reversal of 29447020 is 2074492.

It is a self number, because there is not a number n which added to its sum of digits gives 29447020.

It is not an unprimeable number, because it can be changed into a prime (29447023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17136 + ... + 18775.

It is an arithmetic number, because the mean of its divisors is an integer number (2639532).

Almost surely, 2^29447020 is an apocalyptic number.

29447020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29447020 is an abundant number, since it is smaller than the sum of its proper divisors (33901748).

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

29447020 is a wasteful number, since it uses less digits than its factorization.

29447020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35961 (or 35959 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 29447020 is about 5426.5108495238. The cubic root of 29447020 is about 308.8022460171.

The spelling of 29447020 in words is "twenty-nine million, four hundred forty-seven thousand, twenty".