240340513412454 has 64 divisors (see below), whose sum is σ = 591643336112640. Its totient is φ = 63382660623360.

The previous prime is 240340513412449. The next prime is 240340513412513. The reversal of 240340513412454 is 454214315043042.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4355664 + ... + 22352915.

It is an arithmetic number, because the mean of its divisors is an integer number (9244427126760).

Almost surely, 2^{240340513412454} is an apocalyptic number.

240340513412454 is an abundant number, since it is smaller than the sum of its proper divisors (351302822700186).

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

240340513412454 is a wasteful number, since it uses less digits than its factorization.

240340513412454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26725085.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 240340513412454 its reverse (454214315043042), we get a palindrome (694554828455496).

The spelling of 240340513412454 in words is "two hundred forty trillion, three hundred forty billion, five hundred thirteen million, four hundred twelve thousand, four hundred fifty-four".