240426463 has 4 divisors (see below), whose sum is σ = 241754968. Its totient is φ = 239097960.

The previous prime is 240426451. The next prime is 240426499. The reversal of 240426463 is 364624042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240426463 is a prime.

It is a super-2 number, since 2×240426463² = 115609768221380738, 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 (240426163) 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, 663981 + ... + 664342.

It is an arithmetic number, because the mean of its divisors is an integer number (60438742).

Almost surely, 2^240426463 is an apocalyptic number.

240426463 is a deficient number, since it is larger than the sum of its proper divisors (1328505).

240426463 is a wasteful number, since it uses less digits than its factorization.

240426463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328504.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 240426463 is about 15505.6913099674. The cubic root of 240426463 is about 621.8143721877.

The spelling of 240426463 in words is "two hundred forty million, four hundred twenty-six thousand, four hundred sixty-three".