29900189 has 12 divisors (see below), whose sum is σ = 34002780. Its totient is φ = 26241600.

The previous prime is 29900137. The next prime is 29900201. The reversal of 29900189 is 98100992.

It can be written as a sum of positive squares in 2 ways, for example, as 15077689 + 14822500 = 3883^2 + 3850^2 .

It is not a de Polignac number, because 29900189 - 2¹⁶ = 29834653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29900119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752 + ... + 7769.

It is an arithmetic number, because the mean of its divisors is an integer number (2833565).

Almost surely, 2^29900189 is an apocalyptic number.

29900189 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

29900189 is a deficient number, since it is larger than the sum of its proper divisors (4102591).

29900189 is a wasteful number, since it uses less digits than its factorization.

29900189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572 (or 8561 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 29900189 is about 5468.1065278577. The cubic root of 29900189 is about 310.3782721898.

The spelling of 29900189 in words is "twenty-nine million, nine hundred thousand, one hundred eighty-nine".