2140704 has 36 divisors (see below), whose sum is σ = 6088446. Its totient is φ = 713472.

The previous prime is 2140681. The next prime is 2140729. The reversal of 2140704 is 4070412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 32400 = 1452^2 + 180^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2140704² = 9165227231232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3429 + ... + 4004.

2^2140704 is an apocalyptic number.

2140704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2140704 is an abundant number, since it is smaller than the sum of its proper divisors (3947742).

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

2140704 is a wasteful number, since it uses less digits than its factorization.

2140704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7449 (or 7438 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2140704 is about 1463.1144862929. The cubic root of 2140704 is about 128.8800037914.

The spelling of 2140704 in words is "two million, one hundred forty thousand, seven hundred four".