29142388 has 12 divisors (see below), whose sum is σ = 55635552. Its totient is φ = 13246520.

The previous prime is 29142383. The next prime is 29142457. The reversal of 29142388 is 88324192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29142383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331120 + ... + 331207.

It is an arithmetic number, because the mean of its divisors is an integer number (4636296).

Almost surely, 2^29142388 is an apocalyptic number.

It is an amenable number.

29142388 is a deficient number, since it is larger than the sum of its proper divisors (26493164).

29142388 is a wasteful number, since it uses less digits than its factorization.

29142388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662342 (or 662340 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 29142388 is about 5398.3690129520. The cubic root of 29142388 is about 307.7336906455.

The spelling of 29142388 in words is "twenty-nine million, one hundred forty-two thousand, three hundred eighty-eight".