29021242 has 4 divisors (see below), whose sum is σ = 43531866. Its totient is φ = 14510620.

The previous prime is 29021221. The next prime is 29021243. The reversal of 29021242 is 24212092.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23726641 + 5294601 = 4871^2 + 2301^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (29021243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7255309 + ... + 7255312.

Almost surely, 2^29021242 is an apocalyptic number.

29021242 is a deficient number, since it is larger than the sum of its proper divisors (14510624).

29021242 is a wasteful number, since it uses less digits than its factorization.

29021242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14510623.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 29021242 is about 5387.1367162900. The cubic root of 29021242 is about 307.3066782307.

The spelling of 29021242 in words is "twenty-nine million, twenty-one thousand, two hundred forty-two".