240364261 has 2 divisors, whose sum is σ = 240364262. Its totient is φ = 240364260.

The previous prime is 240364249. The next prime is 240364273. The reversal of 240364261 is 162463042.

It is a balanced prime because it is at equal distance from previous prime (240364249) and next prime (240364273).

It can be written as a sum of positive squares in only one way, i.e., 221831236 + 18533025 = 14894^2 + 4305^2 .

It is a cyclic number.

It is not a de Polignac number, because 240364261 - 2¹³ = 240356069 is a prime.

It is a super-2 number, since 2×240364261² = 115549955932152242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240364211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120182130 + 120182131.

It is an arithmetic number, because the mean of its divisors is an integer number (120182131).

Almost surely, 2^240364261 is an apocalyptic number.

It is an amenable number.

240364261 is a deficient number, since it is larger than the sum of its proper divisors (1).

240364261 is an equidigital number, since it uses as much as digits as its factorization.

240364261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 240364261 is about 15503.6854005749. The cubic root of 240364261 is about 621.7607432691.

The spelling of 240364261 in words is "two hundred forty million, three hundred sixty-four thousand, two hundred sixty-one".