29890142 has 16 divisors (see below), whose sum is σ = 45922032. Its totient is φ = 14587200.

The previous prime is 29890141. The next prime is 29890151. The reversal of 29890142 is 24109892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29890141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13733 + ... + 15759.

It is an arithmetic number, because the mean of its divisors is an integer number (2870127).

Almost surely, 2^29890142 is an apocalyptic number.

29890142 is a deficient number, since it is larger than the sum of its proper divisors (16031890).

29890142 is a wasteful number, since it uses less digits than its factorization.

29890142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 29890142 is about 5467.1877597171. The cubic root of 29890142 is about 310.3435040724.

The spelling of 29890142 in words is "twenty-nine million, eight hundred ninety thousand, one hundred forty-two".