18970029 has 24 divisors (see below), whose sum is σ = 29665272. Its totient is φ = 11612160.

The previous prime is 18970027. The next prime is 18970043. The reversal of 18970029 is 92007981.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6734025 + 12236004 = 2595^2 + 3498^2 .

It is not a de Polignac number, because 18970029 - 2¹ = 18970027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18969975 and 18970002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18970027) 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 23 ways as a sum of consecutive naturals, for example, 32589 + ... + 33165.

It is an arithmetic number, because the mean of its divisors is an integer number (1236053).

Almost surely, 2^18970029 is an apocalyptic number.

It is an amenable number.

18970029 is a deficient number, since it is larger than the sum of its proper divisors (10695243).

18970029 is a wasteful number, since it uses less digits than its factorization.

18970029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 18970029 is about 4355.4596772327. The cubic root of 18970029 is about 266.6997846021.

The spelling of 18970029 in words is "eighteen million, nine hundred seventy thousand, twenty-nine".