29981422 has 8 divisors (see below), whose sum is σ = 45034272. Its totient is φ = 14970000.

The previous prime is 29981407. The next prime is 29981423. The reversal of 29981422 is 22418992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29981423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8479 + ... + 11482.

It is an arithmetic number, because the mean of its divisors is an integer number (5629284).

Almost surely, 2^29981422 is an apocalyptic number.

29981422 is a deficient number, since it is larger than the sum of its proper divisors (15052850).

29981422 is a wasteful number, since it uses less digits than its factorization.

29981422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20714.

The product of its digits is 20736, while the sum is 37.

The square root of 29981422 is about 5475.5293807996. The cubic root of 29981422 is about 310.6590971670.

It can be divided in two parts, 29981 and 422, that added together give a palindrome (30403).

The spelling of 29981422 in words is "twenty-nine million, nine hundred eighty-one thousand, four hundred twenty-two".