240423445 has 16 divisors (see below), whose sum is σ = 298298880. Its totient is φ = 185832000.

The previous prime is 240423431. The next prime is 240423481. The reversal of 240423445 is 544324042.

It is a de Polignac number, because none of the positive numbers 2^k-240423445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164970 + ... + 166420.

It is an arithmetic number, because the mean of its divisors is an integer number (18643680).

Almost surely, 2^240423445 is an apocalyptic number.

It is an amenable number.

240423445 is a deficient number, since it is larger than the sum of its proper divisors (57875435).

240423445 is a wasteful number, since it uses less digits than its factorization.

240423445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 240423445 is about 15505.5939905571. The cubic root of 240423445 is about 621.8117703614.

Adding to 240423445 its reverse (544324042), we get a palindrome (784747487).

The spelling of 240423445 in words is "two hundred forty million, four hundred twenty-three thousand, four hundred forty-five".