2778254 has 8 divisors (see below), whose sum is σ = 4195800. Its totient is φ = 1379656.

The previous prime is 2778241. The next prime is 2778257. The reversal of 2778254 is 4528772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2778254³ = 64333488180302193192, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778257) 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, 4364 + ... + 4959.

It is an arithmetic number, because the mean of its divisors is an integer number (524475).

2^2778254 is an apocalyptic number.

2778254 is a deficient number, since it is larger than the sum of its proper divisors (1417546).

2778254 is a wasteful number, since it uses less digits than its factorization.

2778254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9474.

The product of its digits is 31360, while the sum is 35.

The square root of 2778254 is about 1666.8095272106. The cubic root of 2778254 is about 140.5801436522.

The spelling of 2778254 in words is "two million, seven hundred seventy-eight thousand, two hundred fifty-four".