23280455 has 8 divisors (see below), whose sum is σ = 30476304. Its totient is φ = 16931200.

The previous prime is 23280449. The next prime is 23280469. The reversal of 23280455 is 55408232.

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

It is not a de Polignac number, because 23280455 - 2⁸ = 23280199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211586 + ... + 211695.

It is an arithmetic number, because the mean of its divisors is an integer number (3809538).

Almost surely, 2^23280455 is an apocalyptic number.

23280455 is a deficient number, since it is larger than the sum of its proper divisors (7195849).

23280455 is a wasteful number, since it uses less digits than its factorization.

23280455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423297.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 23280455 is about 4824.9823833875. The cubic root of 23280455 is about 285.5379395724.

Adding to 23280455 its reverse (55408232), we get a palindrome (78688687).

The spelling of 23280455 in words is "twenty-three million, two hundred eighty thousand, four hundred fifty-five".