2140972 has 6 divisors (see below), whose sum is σ = 3746708. Its totient is φ = 1070484.

The previous prime is 2140969. The next prime is 2140973. The reversal of 2140972 is 2790412.

It is a super-2 number, since 2×2140972² = 9167522209568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2140973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267618 + ... + 267625.

2^2140972 is an apocalyptic number.

It is an amenable number.

2140972 is a deficient number, since it is larger than the sum of its proper divisors (1605736).

2140972 is a wasteful number, since it uses less digits than its factorization.

2140972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535247 (or 535245 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2140972 is about 1463.2060688775. The cubic root of 2140972 is about 128.8853818353.

The spelling of 2140972 in words is "two million, one hundred forty thousand, nine hundred seventy-two".