23078415 has 24 divisors (see below), whose sum is σ = 38178864. Its totient is φ = 11904000.

The previous prime is 23078413. The next prime is 23078437. The reversal of 23078415 is 51487032.

It is a Cunningham number, because it is equal to 4804²-1.

It is not a de Polignac number, because 23078415 - 2¹ = 23078413 is a prime.

It is a super-2 number, since 2×23078415² = 1065226477824450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23078413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13615 + ... + 15215.

It is an arithmetic number, because the mean of its divisors is an integer number (1590786).

Almost surely, 2^23078415 is an apocalyptic number.

23078415 is a deficient number, since it is larger than the sum of its proper divisors (15100449).

23078415 is a wasteful number, since it uses less digits than its factorization.

23078415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 23078415 is about 4803.9998959201. Note that the first 3 decimals coincide. The cubic root of 23078415 is about 284.7095224459.

The spelling of 23078415 in words is "twenty-three million, seventy-eight thousand, four hundred fifteen".