29952390 has 32 divisors (see below), whose sum is σ = 77416416. Its totient is φ = 7372800.

The previous prime is 29952359. The next prime is 29952397. The reversal of 29952390 is 9325992.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29952397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38011 + ... + 38790.

It is an arithmetic number, because the mean of its divisors is an integer number (2419263).

Almost surely, 2^29952390 is an apocalyptic number.

29952390 is an abundant number, since it is smaller than the sum of its proper divisors (47464026).

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

29952390 is a wasteful number, since it uses less digits than its factorization.

29952390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76824.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 29952390 is about 5472.8776708419. The cubic root of 29952390 is about 310.5587909660.

The spelling of 29952390 in words is "twenty-nine million, nine hundred fifty-two thousand, three hundred ninety".