29988454 has 16 divisors (see below), whose sum is σ = 45912240. Its totient is φ = 14686560.

The previous prime is 29988437. The next prime is 29988457. The reversal of 29988454 is 45488992.

It is a junction number, because it is equal to n+sod(n) for n = 29988398 and 29988407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29988457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45177 + ... + 45835.

It is an arithmetic number, because the mean of its divisors is an integer number (2869515).

Almost surely, 2^29988454 is an apocalyptic number.

29988454 is a deficient number, since it is larger than the sum of its proper divisors (15923786).

29988454 is a wasteful number, since it uses less digits than its factorization.

29988454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095.

The product of its digits is 829440, while the sum is 49.

The square root of 29988454 is about 5476.1714728449. The cubic root of 29988454 is about 310.6833831398.

The spelling of 29988454 in words is "twenty-nine million, nine hundred eighty-eight thousand, four hundred fifty-four".