2072456 has 16 divisors (see below), whose sum is σ = 4020300. Its totient is φ = 1000384.

The previous prime is 2072437. The next prime is 2072467. The reversal of 2072456 is 6542702.

It can be written as a sum of positive squares in 2 ways, for example, as 2044900 + 27556 = 1430^2 + 166^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 0 + 7⁶ + 2⁷ + 4⁴ + 5⁹ + 6⁴ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4235 + ... + 4698.

2^2072456 is an apocalyptic number.

2072456 is the 770-th centered heptagonal number.

It is an amenable number.

2072456 is a deficient number, since it is larger than the sum of its proper divisors (1947844).

2072456 is a wasteful number, since it uses less digits than its factorization.

2072456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8968 (or 8964 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2072456 is about 1439.6027229760. The cubic root of 2072456 is about 127.4955733437.

The spelling of 2072456 in words is "two million, seventy-two thousand, four hundred fifty-six".