29403990 has 96 divisors (see below), whose sum is σ = 95337216. Its totient is φ = 6108480.

The previous prime is 29403977. The next prime is 29404003. The reversal of 29403990 is 9930492.

It is an interprime number because it is at equal distance from previous prime (29403977) and next prime (29404003).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4809 + ... + 9051.

It is an arithmetic number, because the mean of its divisors is an integer number (993096).

Almost surely, 2^29403990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29403990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47668608).

29403990 is an abundant number, since it is smaller than the sum of its proper divisors (65933226).

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

29403990 is a wasteful number, since it uses less digits than its factorization.

29403990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274 (or 4271 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 29403990 is about 5422.5446056257. The cubic root of 29403990 is about 308.6517583703.

The spelling of 29403990 in words is "twenty-nine million, four hundred three thousand, nine hundred ninety".