240456047 has 4 divisors (see below), whose sum is σ = 258952680. Its totient is φ = 221959416.

The previous prime is 240456037. The next prime is 240456059. The reversal of 240456047 is 740654042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740654042 = 2 ⋅370327021.

It is a cyclic number.

It is not a de Polignac number, because 240456047 - 2⁶ = 240455983 is a prime.

It is a super-2 number, since 2×240456047² = 115638221077732418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240456037) 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, 9248297 + ... + 9248322.

It is an arithmetic number, because the mean of its divisors is an integer number (64738170).

Almost surely, 2^240456047 is an apocalyptic number.

240456047 is a deficient number, since it is larger than the sum of its proper divisors (18496633).

240456047 is a wasteful number, since it uses less digits than its factorization.

240456047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18496632.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 240456047 is about 15506.6452529230. The cubic root of 240456047 is about 621.8398754839.

The spelling of 240456047 in words is "two hundred forty million, four hundred fifty-six thousand, forty-seven".