73440371 has 2 divisors, whose sum is σ = 73440372. Its totient is φ = 73440370.

The previous prime is 73440359. The next prime is 73440373. The reversal of 73440371 is 17304437.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73440371 is a prime.

It is a Sophie Germain prime.

Together with 73440373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73440373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36720185 + 36720186.

It is an arithmetic number, because the mean of its divisors is an integer number (36720186).

Almost surely, 2^73440371 is an apocalyptic number.

73440371 is a deficient number, since it is larger than the sum of its proper divisors (1).

73440371 is an equidigital number, since it uses as much as digits as its factorization.

73440371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 73440371 is about 8569.7357602204. The cubic root of 73440371 is about 418.7726279894.

The spelling of 73440371 in words is "seventy-three million, four hundred forty thousand, three hundred seventy-one".