240393473 has 2 divisors, whose sum is σ = 240393474. Its totient is φ = 240393472.

The previous prime is 240393457. The next prime is 240393479. The reversal of 240393473 is 374393042.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143233024 + 97160449 = 11968^2 + 9857^2 .

It is a cyclic number.

It is not a de Polignac number, because 240393473 - 2⁴ = 240393457 is a prime.

It is a super-2 number, since 2×240393473² = 115578043722003458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240393479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120196736 + 120196737.

It is an arithmetic number, because the mean of its divisors is an integer number (120196737).

Almost surely, 2^240393473 is an apocalyptic number.

It is an amenable number.

240393473 is a deficient number, since it is larger than the sum of its proper divisors (1).

240393473 is an equidigital number, since it uses as much as digits as its factorization.

240393473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 240393473 is about 15504.6274705328. The cubic root of 240393473 is about 621.7859302347.

The spelling of 240393473 in words is "two hundred forty million, three hundred ninety-three thousand, four hundred seventy-three".