240266401 has 4 divisors (see below), whose sum is σ = 241740592. Its totient is φ = 238792212.

The previous prime is 240266387. The next prime is 240266417. The reversal of 240266401 is 104662042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240266401 - 2¹³ = 240258209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240266801) 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, 736851 + ... + 737176.

It is an arithmetic number, because the mean of its divisors is an integer number (60435148).

Almost surely, 2^240266401 is an apocalyptic number.

It is an amenable number.

240266401 is a deficient number, since it is larger than the sum of its proper divisors (1474191).

240266401 is a wasteful number, since it uses less digits than its factorization.

240266401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474190.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 240266401 is about 15500.5290554871. The cubic root of 240266401 is about 621.6763522351.

The spelling of 240266401 in words is "two hundred forty million, two hundred sixty-six thousand, four hundred one".