2928740 has 12 divisors (see below), whose sum is σ = 6150396. Its totient is φ = 1171488.

The previous prime is 2928719. The next prime is 2928749. The reversal of 2928740 is 478292.

It can be written as a sum of positive squares in 2 ways, for example, as 1779556 + 1149184 = 1334^2 + 1072^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2928697 and 2928706.

It is not an unprimeable number, because it can be changed into a prime (2928749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73199 + ... + 73238.

It is an arithmetic number, because the mean of its divisors is an integer number (512533).

2^2928740 is an apocalyptic number.

2928740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2928740 is an abundant number, since it is smaller than the sum of its proper divisors (3221656).

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

2928740 is a wasteful number, since it uses less digits than its factorization.

2928740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146446 (or 146444 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2928740 is about 1711.3561873555. The cubic root of 2928740 is about 143.0738529955.

The spelling of 2928740 in words is "two million, nine hundred twenty-eight thousand, seven hundred forty".