5681418 has 48 divisors (see below), whose sum is σ = 12472416. Its totient is φ = 1723680.

The previous prime is 5681413. The next prime is 5681447. The reversal of 5681418 is 8141865.

Its product of digits (7680) is a multiple of the sum of its prime divisors (128).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681413) 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, 93108 + ... + 93168.

It is an arithmetic number, because the mean of its divisors is an integer number (259842).

Almost surely, 2^5681418 is an apocalyptic number.

5681418 is an abundant number, since it is smaller than the sum of its proper divisors (6790998).

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

5681418 is a wasteful number, since it uses less digits than its factorization.

5681418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 128 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 5681418 is about 2383.5725287895. The cubic root of 5681418 is about 178.4372744478.

The spelling of 5681418 in words is "five million, six hundred eighty-one thousand, four hundred eighteen".