240609465 has 12 divisors (see below), whose sum is σ = 417056484. Its totient is φ = 128325024.

The previous prime is 240609461. The next prime is 240609469. The reversal of 240609465 is 564906042.

240609465 is a `hidden beast` number, since 2 + 4 + 0 + 609 + 46 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (240609461) and next prime (240609469).

It can be written as a sum of positive squares in 2 ways, for example, as 177502329 + 63107136 = 13323^2 + 7944^2 .

It is not a de Polignac number, because 240609465 - 2² = 240609461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240609461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2673394 + ... + 2673483.

It is an arithmetic number, because the mean of its divisors is an integer number (34754707).

Almost surely, 2^240609465 is an apocalyptic number.

It is an amenable number.

240609465 is a deficient number, since it is larger than the sum of its proper divisors (176447019).

240609465 is a wasteful number, since it uses less digits than its factorization.

240609465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346888 (or 5346885 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 240609465 is about 15511.5913110164. The cubic root of 240609465 is about 621.9720980512.

The spelling of 240609465 in words is "two hundred forty million, six hundred nine thousand, four hundred sixty-five".