2780454 has 16 divisors (see below), whose sum is σ = 5596992. Its totient is φ = 920808.

The previous prime is 2780443. The next prime is 2780467. The reversal of 2780454 is 4540872.

2780454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2780454² = 15461848892232, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 444 + ... + 2399.

It is an arithmetic number, because the mean of its divisors is an integer number (349812).

2^2780454 is an apocalyptic number.

2780454 is an abundant number, since it is smaller than the sum of its proper divisors (2816538).

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

2780454 is a wasteful number, since it uses less digits than its factorization.

2780454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 2780454 is about 1667.4693400480. The cubic root of 2780454 is about 140.6172406583.

The spelling of 2780454 in words is "two million, seven hundred eighty thousand, four hundred fifty-four".