240454656 has 220 divisors, whose sum is σ = 776746432. Its totient is φ = 73654272.

The previous prime is 240454651. The next prime is 240454657. The reversal of 240454656 is 656454042.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 240454656.

It is not an unprimeable number, because it can be changed into a prime (240454651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1078161 + ... + 1078383.

Almost surely, 2^240454656 is an apocalyptic number.

240454656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240454656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388373216).

240454656 is an abundant number, since it is smaller than the sum of its proper divisors (536291776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240454656 is a wasteful number, since it uses less digits than its factorization.

240454656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 240454656 is about 15506.6004011195. The cubic root of 240454656 is about 621.8386764000.

The spelling of 240454656 in words is "two hundred forty million, four hundred fifty-four thousand, six hundred fifty-six".