19242634 has 4 divisors (see below), whose sum is σ = 28863954. Its totient is φ = 9621316.

The previous prime is 19242593. The next prime is 19242667. The reversal of 19242634 is 43624291.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18879025 + 363609 = 4345^2 + 603^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 19242596 and 19242605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4810657 + ... + 4810660.

Almost surely, 2^19242634 is an apocalyptic number.

19242634 is a deficient number, since it is larger than the sum of its proper divisors (9621320).

19242634 is an equidigital number, since it uses as much as digits as its factorization.

19242634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9621319.

The product of its digits is 10368, while the sum is 31.

The square root of 19242634 is about 4386.6426797723. The cubic root of 19242634 is about 267.9712321538.

The spelling of 19242634 in words is "nineteen million, two hundred forty-two thousand, six hundred thirty-four".