2164374 has 32 divisors (see below), whose sum is σ = 4860000. Its totient is φ = 713952.

The previous prime is 2164367. The next prime is 2164387. The reversal of 2164374 is 4734612.

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

It is an Ulam number.

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 15 ways as a sum of consecutive naturals, for example, 7912 + ... + 8180.

It is an arithmetic number, because the mean of its divisors is an integer number (151875).

2^2164374 is an apocalyptic number.

2164374 is an abundant number, since it is smaller than the sum of its proper divisors (2695626).

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

2164374 is a wasteful number, since it uses less digits than its factorization.

2164374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 423 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 2164374 is about 1471.1811581175. The cubic root of 2164374 is about 129.3532771762.

Adding to 2164374 its reverse (4734612), we get a palindrome (6898986).

It can be divided in two parts, 216 and 4374, that multiplied together give a square (944784 = 972²).

The spelling of 2164374 in words is "two million, one hundred sixty-four thousand, three hundred seventy-four".