38219247 has 24 divisors (see below), whose sum is σ = 63769680. Its totient is φ = 21799680.

The previous prime is 38219227. The next prime is 38219267. The reversal of 38219247 is 74291283.

It is an interprime number because it is at equal distance from previous prime (38219227) and next prime (38219267).

It is not a de Polignac number, because 38219247 - 2¹⁰ = 38218223 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38219227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9672 + ... + 13037.

It is an arithmetic number, because the mean of its divisors is an integer number (2657070).

Almost surely, 2^38219247 is an apocalyptic number.

38219247 is a deficient number, since it is larger than the sum of its proper divisors (25550433).

38219247 is a wasteful number, since it uses less digits than its factorization.

38219247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22743 (or 22740 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 38219247 is about 6182.1717058005. The cubic root of 38219247 is about 336.8428827306.

Subtracting 38219247 from its reverse (74291283), we obtain a square (36072036 = 6006²).

The spelling of 38219247 in words is "thirty-eight million, two hundred nineteen thousand, two hundred forty-seven".