29720994 has 32 divisors (see below), whose sum is σ = 60587520. Its totient is φ = 9718272.

The previous prime is 29720993. The next prime is 29721007. The reversal of 29720994 is 49902792.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29720993) 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, 129672 + ... + 129900.

It is an arithmetic number, because the mean of its divisors is an integer number (1893360).

Almost surely, 2^29720994 is an apocalyptic number.

29720994 is an abundant number, since it is smaller than the sum of its proper divisors (30866526).

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

29720994 is a wasteful number, since it uses less digits than its factorization.

29720994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 29720994 is about 5451.6964332215. The cubic root of 29720994 is about 309.7569860995.

The spelling of 29720994 in words is "twenty-nine million, seven hundred twenty thousand, nine hundred ninety-four".