2418390 has 96 divisors (see below), whose sum is σ = 7115040. Its totient is φ = 584064.

The previous prime is 2418389. The next prime is 2418401. The reversal of 2418390 is 938142.

It is a super-2 number, since 2×2418390² = 11697220384200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45604 + ... + 45656.

It is an arithmetic number, because the mean of its divisors is an integer number (74115).

2^2418390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2418390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3557520).

2418390 is an abundant number, since it is smaller than the sum of its proper divisors (4696650).

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

2418390 is a wasteful number, since it uses less digits than its factorization.

2418390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2418390 is about 1555.1173589154. The cubic root of 2418390 is about 134.2276889361.

The spelling of 2418390 in words is "two million, four hundred eighteen thousand, three hundred ninety".