29698920 has 128 divisors (see below), whose sum is σ = 100310400. Its totient is φ = 7815168.

The previous prime is 29698913. The next prime is 29698927. The reversal of 29698920 is 2989692.

It is an interprime number because it is at equal distance from previous prime (29698913) and next prime (29698927).

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

It is not an unprimeable number, because it can be changed into a prime (29698927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115432 + ... + 115688.

It is an arithmetic number, because the mean of its divisors is an integer number (783675).

Almost surely, 2^29698920 is an apocalyptic number.

29698920 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 29698920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50155200).

29698920 is an abundant number, since it is smaller than the sum of its proper divisors (70611480).

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

29698920 is a wasteful number, since it uses less digits than its factorization.

29698920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 29698920 is about 5449.6715497358. The cubic root of 29698920 is about 309.6802808455.

The spelling of 29698920 in words is "twenty-nine million, six hundred ninety-eight thousand, nine hundred twenty".