29643142 has 16 divisors (see below), whose sum is σ = 45814320. Its totient is φ = 14374368.

The previous prime is 29643137. The next prime is 29643149. The reversal of 29643142 is 24134692.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29643149) 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, 37273 + ... + 38059.

It is an arithmetic number, because the mean of its divisors is an integer number (2863395).

Almost surely, 2^29643142 is an apocalyptic number.

29643142 is a deficient number, since it is larger than the sum of its proper divisors (16171178).

29643142 is a wasteful number, since it uses less digits than its factorization.

29643142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its digits is 10368, while the sum is 31.

The square root of 29643142 is about 5444.5515885149. The cubic root of 29643142 is about 309.4862875759.

The spelling of 29643142 in words is "twenty-nine million, six hundred forty-three thousand, one hundred forty-two".