5421918 has 16 divisors (see below), whose sum is σ = 10866960. Its totient is φ = 1803456.

The previous prime is 5421907. The next prime is 5421919. The reversal of 5421918 is 8191245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421919) 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, 4296 + ... + 5412.

It is an arithmetic number, because the mean of its divisors is an integer number (679185).

Almost surely, 2^5421918 is an apocalyptic number.

5421918 is an abundant number, since it is smaller than the sum of its proper divisors (5445042).

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

5421918 is a wasteful number, since it uses less digits than its factorization.

5421918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its digits is 2880, while the sum is 30.

The square root of 5421918 is about 2328.5012347001. The cubic root of 5421918 is about 175.6781091307.

The spelling of 5421918 in words is "five million, four hundred twenty-one thousand, nine hundred eighteen".