23078406 has 16 divisors (see below), whose sum is σ = 49707504. Its totient is φ = 7101024.

The previous prime is 23078389. The next prime is 23078413. The reversal of 23078406 is 60487032.

It is a super-2 number, since 2×23078406² = 1065225647001672, which contains 22 as substring.

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, 147861 + ... + 148016.

It is an arithmetic number, because the mean of its divisors is an integer number (3106719).

Almost surely, 2^23078406 is an apocalyptic number.

23078406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23078406 is an abundant number, since it is smaller than the sum of its proper divisors (26629098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23078406 is a wasteful number, since it uses less digits than its factorization.

23078406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295895.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 23078406 is about 4803.9989592006. The cubic root of 23078406 is about 284.7094854360.

The spelling of 23078406 in words is "twenty-three million, seventy-eight thousand, four hundred six".