2939278 has 8 divisors (see below), whose sum is σ = 4422600. Its totient is φ = 1465080.

The previous prime is 2939273. The next prime is 2939291. The reversal of 2939278 is 8729392.

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

It is a super-2 number, since 2×2939278² = 17278710322568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2939278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2939273) 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, 1408 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (552825).

2^2939278 is an apocalyptic number.

2939278 is a deficient number, since it is larger than the sum of its proper divisors (1483322).

2939278 is a wasteful number, since it uses less digits than its factorization.

2939278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562.

The product of its digits is 54432, while the sum is 40.

The square root of 2939278 is about 1714.4322675451. The cubic root of 2939278 is about 143.2452472415.

The spelling of 2939278 in words is "two million, nine hundred thirty-nine thousand, two hundred seventy-eight".