15472742 has 8 divisors (see below), whose sum is σ = 23291976. Its totient is φ = 7708752.

The previous prime is 15472693. The next prime is 15472753. The reversal of 15472742 is 24727451.

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

It is a junction number, because it is equal to n+sod(n) for n = 15472699 and 15472708.

It is a congruent number.

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, 13103 + ... + 14234.

It is an arithmetic number, because the mean of its divisors is an integer number (2911497).

Almost surely, 2^15472742 is an apocalyptic number.

15472742 is a deficient number, since it is larger than the sum of its proper divisors (7819234).

15472742 is a wasteful number, since it uses less digits than its factorization.

15472742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27622.

The product of its digits is 15680, while the sum is 32.

The square root of 15472742 is about 3933.5406442542. The cubic root of 15472742 is about 249.1853053075.

The spelling of 15472742 in words is "fifteen million, four hundred seventy-two thousand, seven hundred forty-two".