29478142 has 4 divisors (see below), whose sum is σ = 44217216. Its totient is φ = 14739070.

The previous prime is 29478133. The next prime is 29478143. The reversal of 29478142 is 24187492.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29478143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7369534 + ... + 7369537.

It is an arithmetic number, because the mean of its divisors is an integer number (11054304).

Almost surely, 2^29478142 is an apocalyptic number.

29478142 is a deficient number, since it is larger than the sum of its proper divisors (14739074).

29478142 is a wasteful number, since it uses less digits than its factorization.

29478142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14739073.

The product of its digits is 32256, while the sum is 37.

The square root of 29478142 is about 5429.3776807292. The cubic root of 29478142 is about 308.9109968036.

The spelling of 29478142 in words is "twenty-nine million, four hundred seventy-eight thousand, one hundred forty-two".