29261990 has 24 divisors (see below), whose sum is σ = 53391312. Its totient is φ = 11546880.

The previous prime is 29261983. The next prime is 29261993. The reversal of 29261990 is 9916292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29261993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93935 + ... + 94245.

It is an arithmetic number, because the mean of its divisors is an integer number (2224638).

Almost surely, 2^29261990 is an apocalyptic number.

29261990 is a deficient number, since it is larger than the sum of its proper divisors (24129322).

29261990 is an equidigital number, since it uses as much as digits as its factorization.

29261990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 29261990 is about 5409.4352755163. The cubic root of 29261990 is about 308.1541014992.

The spelling of 29261990 in words is "twenty-nine million, two hundred sixty-one thousand, nine hundred ninety".