2190735 has 24 divisors (see below), whose sum is σ = 3846960. Its totient is φ = 1153152.

The previous prime is 2190691. The next prime is 2190737. The reversal of 2190735 is 5370912.

It is not a de Polignac number, because 2190735 - 2⁷ = 2190607 is a prime.

2190735 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2190699 and 2190708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3732 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (160290).

2^2190735 is an apocalyptic number.

2190735 is a deficient number, since it is larger than the sum of its proper divisors (1656225).

2190735 is a wasteful number, since it uses less digits than its factorization.

2190735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2190735 is about 1480.1131713487. The cubic root of 2190735 is about 129.8763123358.

The spelling of 2190735 in words is "two million, one hundred ninety thousand, seven hundred thirty-five".