19397241 has 12 divisors (see below), whose sum is σ = 28267668. Its totient is φ = 12816384.

The previous prime is 19397219. The next prime is 19397243. The reversal of 19397241 is 14279391.

It can be written as a sum of positive squares in 2 ways, for example, as 291600 + 19105641 = 540^2 + 4371^2 .

It is not a de Polignac number, because 19397241 - 2⁶ = 19397177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19397196 and 19397205.

It is not an unprimeable number, because it can be changed into a prime (19397243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8520 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (2355639).

Almost surely, 2^19397241 is an apocalyptic number.

It is an amenable number.

19397241 is a deficient number, since it is larger than the sum of its proper divisors (8870427).

19397241 is a wasteful number, since it uses less digits than its factorization.

19397241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19192 (or 19189 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 19397241 is about 4404.2298986315. The cubic root of 19397241 is about 268.6869997630.

It can be divided in two parts, 1939 and 7241, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 19397241 in words is "nineteen million, three hundred ninety-seven thousand, two hundred forty-one".