2040978 has 16 divisors (see below), whose sum is σ = 4214016. Its totient is φ = 658320.

The previous prime is 2040971. The next prime is 2040989. The reversal of 2040978 is 8790402.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2040971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5301 + ... + 5672.

It is an arithmetic number, because the mean of its divisors is an integer number (263376).

2^2040978 is an apocalyptic number.

2040978 is an abundant number, since it is smaller than the sum of its proper divisors (2173038).

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

2040978 is a wasteful number, since it uses less digits than its factorization.

2040978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2040978 is about 1428.6280131651. The cubic root of 2040978 is about 126.8467782441.

The spelling of 2040978 in words is "two million, forty thousand, nine hundred seventy-eight".