29678990 has 32 divisors (see below), whose sum is σ = 59163264. Its totient is φ = 10628640.

The previous prime is 29678989. The next prime is 29679017. The reversal of 29678990 is 9987692.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5357 + ... + 9383.

It is an arithmetic number, because the mean of its divisors is an integer number (1848852).

Almost surely, 2^29678990 is an apocalyptic number.

29678990 is a deficient number, since it is larger than the sum of its proper divisors (29484274).

29678990 is a wasteful number, since it uses less digits than its factorization.

29678990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 29678990 is about 5447.8426922957. The cubic root of 29678990 is about 309.6109931508.

The spelling of 29678990 in words is "twenty-nine million, six hundred seventy-eight thousand, nine hundred ninety".