4218992 has 20 divisors (see below), whose sum is σ = 8655696. Its totient is φ = 1985280.

The previous prime is 4218989. The next prime is 4218997. The reversal of 4218992 is 2998124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7484 + ... + 8027.

Almost surely, 2^4218992 is an apocalyptic number.

It is an amenable number.

4218992 is an abundant number, since it is smaller than the sum of its proper divisors (4436704).

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

4218992 is a wasteful number, since it uses less digits than its factorization.

4218992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15536 (or 15530 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 4218992 is about 2054.0185004035. The cubic root of 4218992 is about 161.5856913122.

The spelling of 4218992 in words is "four million, two hundred eighteen thousand, nine hundred ninety-two".