23278461 has 8 divisors (see below), whose sum is σ = 32387520. Its totient is φ = 14844192.

The previous prime is 23278441. The next prime is 23278471. The reversal of 23278461 is 16487232.

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

It is not a de Polignac number, because 23278461 - 2¹⁴ = 23262077 is a prime.

It is a congruent 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, 168616 + ... + 168753.

It is an arithmetic number, because the mean of its divisors is an integer number (4048440).

Almost surely, 2^23278461 is an apocalyptic number.

It is an amenable number.

23278461 is a deficient number, since it is larger than the sum of its proper divisors (9109059).

23278461 is a wasteful number, since it uses less digits than its factorization.

23278461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337395.

The product of its digits is 16128, while the sum is 33.

The square root of 23278461 is about 4824.7757460840. The cubic root of 23278461 is about 285.5297871128.

The spelling of 23278461 in words is "twenty-three million, two hundred seventy-eight thousand, four hundred sixty-one".