23478490 has 64 divisors (see below), whose sum is σ = 51609600. Its totient is φ = 7511616.

The previous prime is 23478463. The next prime is 23478517. The reversal of 23478490 is 9487432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23478463) and next prime (23478517).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168841 + ... + 168979.

It is an arithmetic number, because the mean of its divisors is an integer number (806400).

Almost surely, 2^23478490 is an apocalyptic number.

23478490 is an abundant number, since it is smaller than the sum of its proper divisors (28131110).

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

23478490 is a wasteful number, since it uses less digits than its factorization.

23478490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 23478490 is about 4845.4607624043. The cubic root of 23478490 is about 286.3452966717.

The spelling of 23478490 in words is "twenty-three million, four hundred seventy-eight thousand, four hundred ninety".