2453778 has 24 divisors (see below), whose sum is σ = 5548608. Its totient is φ = 782232.

The previous prime is 2453771. The next prime is 2453779. The reversal of 2453778 is 8773542.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2¹⁵ + 4 + 5⁵ + 3¹³ + 7 + 7⁷ + 8 .

It is not an unprimeable number, because it can be changed into a prime (2453771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2550 + ... + 3377.

It is an arithmetic number, because the mean of its divisors is an integer number (231192).

2^2453778 is an apocalyptic number.

2453778 is an abundant number, since it is smaller than the sum of its proper divisors (3094830).

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

2453778 is a wasteful number, since it uses less digits than its factorization.

2453778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5958 (or 5955 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 2453778 is about 1566.4539571912. The cubic root of 2453778 is about 134.8792335624.

The spelling of 2453778 in words is "two million, four hundred fifty-three thousand, seven hundred seventy-eight".