15472994 has 8 divisors (see below), whose sum is σ = 23263680. Its totient is φ = 7718436.

The previous prime is 15472987. The next prime is 15473021. The reversal of 15472994 is 49927451.

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

It is a super-3 number, since 3×15472994³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7934 + ... + 9689.

It is an arithmetic number, because the mean of its divisors is an integer number (2907960).

Almost surely, 2^15472994 is an apocalyptic number.

15472994 is a deficient number, since it is larger than the sum of its proper divisors (7790686).

15472994 is a wasteful number, since it uses less digits than its factorization.

15472994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18064.

The product of its digits is 90720, while the sum is 41.

The square root of 15472994 is about 3933.5726763338. The cubic root of 15472994 is about 249.1866581027.

The spelling of 15472994 in words is "fifteen million, four hundred seventy-two thousand, nine hundred ninety-four".