29217930 has 32 divisors (see below), whose sum is σ = 80141184. Its totient is φ = 6678336.

The previous prime is 29217919. The next prime is 29217943. The reversal of 29217930 is 3971292.

It is a junction number, because it is equal to n+sod(n) for n = 29217891 and 29217900.

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, 69357 + ... + 69776.

It is an arithmetic number, because the mean of its divisors is an integer number (2504412).

Almost surely, 2^29217930 is an apocalyptic number.

29217930 is an abundant number, since it is smaller than the sum of its proper divisors (50923254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29217930 is a wasteful number, since it uses less digits than its factorization.

29217930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139150.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 29217930 is about 5405.3612275222. The cubic root of 29217930 is about 307.9993604867. Note that the first 3 decimals are identical.

The spelling of 29217930 in words is "twenty-nine million, two hundred seventeen thousand, nine hundred thirty".