2117394 has 32 divisors (see below), whose sum is σ = 4760640. Its totient is φ = 697536.

The previous prime is 2117389. The next prime is 2117411. The reversal of 2117394 is 4937112.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5929 + ... + 6275.

It is an arithmetic number, because the mean of its divisors is an integer number (148770).

2^2117394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2117394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2380320).

2117394 is an abundant number, since it is smaller than the sum of its proper divisors (2643246).

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

2117394 is a wasteful number, since it uses less digits than its factorization.

2117394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 465 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 2117394 is about 1455.1267985987. The cubic root of 2117394 is about 128.4105066082.

The spelling of 2117394 in words is "two million, one hundred seventeen thousand, three hundred ninety-four".