2078730 has 32 divisors (see below), whose sum is σ = 5544000. Its totient is φ = 554256.

The previous prime is 2078723. The next prime is 2078731. The reversal of 2078730 is 378702.

It is a super-2 number, since 2×2078730² = 8642236825800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2078694 and 2078703.

It is not an unprimeable number, because it can be changed into a prime (2078731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3580 + ... + 4119.

It is an arithmetic number, because the mean of its divisors is an integer number (173250).

2^2078730 is an apocalyptic number.

2078730 is an abundant number, since it is smaller than the sum of its proper divisors (3465270).

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

2078730 is a wasteful number, since it uses less digits than its factorization.

2078730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7715 (or 7709 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 2078730 is about 1441.7801496761. The cubic root of 2078730 is about 127.6241006222.

The spelling of 2078730 in words is "two million, seventy-eight thousand, seven hundred thirty".