65238190 has 8 divisors (see below), whose sum is σ = 117428760. Its totient is φ = 26095272.

The previous prime is 65238169. The next prime is 65238193. The reversal of 65238190 is 9183256.

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

It is a super-2 number, since 2×65238190² = 8512042868952200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65238193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3261900 + ... + 3261919.

It is an arithmetic number, because the mean of its divisors is an integer number (14678595).

Almost surely, 2^65238190 is an apocalyptic number.

65238190 is a deficient number, since it is larger than the sum of its proper divisors (52190570).

65238190 is a wasteful number, since it uses less digits than its factorization.

65238190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523826.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 65238190 is about 8077.0161569728. The cubic root of 65238190 is about 402.5631036691.

The spelling of 65238190 in words is "sixty-five million, two hundred thirty-eight thousand, one hundred ninety".