15374642 has 4 divisors (see below), whose sum is σ = 23061966. Its totient is φ = 7687320.

The previous prime is 15374627. The next prime is 15374659. The reversal of 15374642 is 24647351.

15374642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24647351 = 19 ⋅1297229.

It can be written as a sum of positive squares in only one way, i.e., 15062161 + 312481 = 3881^2 + 559^2 .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 15374599 and 15374608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3843659 + ... + 3843662.

Almost surely, 2^15374642 is an apocalyptic number.

15374642 is a deficient number, since it is larger than the sum of its proper divisors (7687324).

15374642 is an equidigital number, since it uses as much as digits as its factorization.

15374642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687323.

The product of its digits is 20160, while the sum is 32.

The square root of 15374642 is about 3921.0511345811. The cubic root of 15374642 is about 248.6575616734.

The spelling of 15374642 in words is "fifteen million, three hundred seventy-four thousand, six hundred forty-two".