240679149 has 16 divisors (see below), whose sum is σ = 351501120. Its totient is φ = 145806080.

The previous prime is 240679141. The next prime is 240679163. The reversal of 240679149 is 941976042.

It is a cyclic number.

It is not a de Polignac number, because 240679149 - 2³ = 240679141 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240679149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240679141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79887 + ... + 82844.

It is an arithmetic number, because the mean of its divisors is an integer number (21968820).

Almost surely, 2^240679149 is an apocalyptic number.

240679149 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

240679149 is a deficient number, since it is larger than the sum of its proper divisors (110821971).

240679149 is a wasteful number, since it uses less digits than its factorization.

240679149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162780.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 240679149 is about 15513.8373396139. The cubic root of 240679149 is about 622.0321363103.

The spelling of 240679149 in words is "two hundred forty million, six hundred seventy-nine thousand, one hundred forty-nine".