29861772 has 12 divisors (see below), whose sum is σ = 69677496. Its totient is φ = 9953920.

The previous prime is 29861747. The next prime is 29861801. The reversal of 29861772 is 27716892.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244229 + ... + 1244252.

It is an arithmetic number, because the mean of its divisors is an integer number (5806458).

Almost surely, 2^29861772 is an apocalyptic number.

It is an amenable number.

29861772 is an abundant number, since it is smaller than the sum of its proper divisors (39815724).

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

29861772 is a wasteful number, since it uses less digits than its factorization.

29861772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488488 (or 2488486 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 29861772 is about 5464.5925740168. The cubic root of 29861772 is about 310.2452862694.

The spelling of 29861772 in words is "twenty-nine million, eight hundred sixty-one thousand, seven hundred seventy-two".