23440454 has 8 divisors (see below), whose sum is σ = 35371728. Its totient is φ = 11649880.

The previous prime is 23440441. The next prime is 23440457. The reversal of 23440454 is 45404432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23440454² = 1098909767452232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440457) 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, 34757 + ... + 35424.

It is an arithmetic number, because the mean of its divisors is an integer number (4421466).

Almost surely, 2^23440454 is an apocalyptic number.

23440454 is a deficient number, since it is larger than the sum of its proper divisors (11931274).

23440454 is a wasteful number, since it uses less digits than its factorization.

23440454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70350.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 23440454 is about 4841.5342609549. The cubic root of 23440454 is about 286.1905831941.

Adding to 23440454 its reverse (45404432), we get a palindrome (68844886).

The spelling of 23440454 in words is "twenty-three million, four hundred forty thousand, four hundred fifty-four".