29980423 has 16 divisors (see below), whose sum is σ = 34957440. Its totient is φ = 25423200.

The previous prime is 29980411. The next prime is 29980543. The reversal of 29980423 is 32408992.

It is a de Polignac number, because none of the positive numbers 2^k-29980423 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 (29980823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12933 + ... + 15073.

It is an arithmetic number, because the mean of its divisors is an integer number (2184840).

Almost surely, 2^29980423 is an apocalyptic number.

29980423 is a deficient number, since it is larger than the sum of its proper divisors (4977017).

29980423 is a wasteful number, since it uses less digits than its factorization.

29980423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 29980423 is about 5475.4381559835. The cubic root of 29980423 is about 310.6556466759.

It can be divided in two parts, 29980 and 423, that added together give a palindrome (30403).

The spelling of 29980423 in words is "twenty-nine million, nine hundred eighty thousand, four hundred twenty-three".