73840251 has 16 divisors (see below), whose sum is σ = 103850240. Its totient is φ = 46539360.

The previous prime is 73840237. The next prime is 73840253. The reversal of 73840251 is 15204837.

It is not a de Polignac number, because 73840251 - 2¹¹ = 73838203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73840253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34941 + ... + 36993.

It is an arithmetic number, because the mean of its divisors is an integer number (6490640).

Almost surely, 2^73840251 is an apocalyptic number.

73840251 is a deficient number, since it is larger than the sum of its proper divisors (30009989).

73840251 is a wasteful number, since it uses less digits than its factorization.

73840251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 73840251 is about 8593.0350284402. The cubic root of 73840251 is about 419.5313195950.

The spelling of 73840251 in words is "seventy-three million, eight hundred forty thousand, two hundred fifty-one".