23278451 has 8 divisors (see below), whose sum is σ = 26673504. Its totient is φ = 19900800.

The previous prime is 23278441. The next prime is 23278471. The reversal of 23278451 is 15487232.

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

It is a cyclic number.

It is not a de Polignac number, because 23278451 - 2¹⁰ = 23277427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23278441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1340 + ... + 6953.

It is an arithmetic number, because the mean of its divisors is an integer number (3334188).

Almost surely, 2^23278451 is an apocalyptic number.

23278451 is a deficient number, since it is larger than the sum of its proper divisors (3395053).

23278451 is an equidigital number, since it uses as much as digits as its factorization.

23278451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701.

The product of its digits is 13440, while the sum is 32.

The square root of 23278451 is about 4824.7747097662. The cubic root of 23278451 is about 285.5297462266.

The spelling of 23278451 in words is "twenty-three million, two hundred seventy-eight thousand, four hundred fifty-one".