2253778 has 4 divisors (see below), whose sum is σ = 3380670. Its totient is φ = 1126888.

The previous prime is 2253773. The next prime is 2253803. The reversal of 2253778 is 8773522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2241009 + 12769 = 1497^2 + 113^2 .

It is a d-powerful number, because it can be written as 2¹⁴ + 2²¹ + 5⁶ + 3⁸ + 7³ + 7⁶ + 8² .

It is not an unprimeable number, because it can be changed into a prime (2253773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563443 + ... + 563446.

2^2253778 is an apocalyptic number.

2253778 is a deficient number, since it is larger than the sum of its proper divisors (1126892).

2253778 is a wasteful number, since it uses less digits than its factorization.

2253778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126891.

The product of its digits is 23520, while the sum is 34.

The square root of 2253778 is about 1501.2588051365. The cubic root of 2253778 is about 131.1103706322.

The spelling of 2253778 in words is "two million, two hundred fifty-three thousand, seven hundred seventy-eight".