2278492 has 6 divisors (see below), whose sum is σ = 3987368. Its totient is φ = 1139244.

The previous prime is 2278487. The next prime is 2278517. The reversal of 2278492 is 2948722.

It is a d-powerful number, because it can be written as 2 + 2⁵ + 7⁶ + 8³ + 4⁶ + 9⁵ + 2²¹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284808 + ... + 284815.

2^2278492 is an apocalyptic number.

It is an amenable number.

2278492 is a deficient number, since it is larger than the sum of its proper divisors (1708876).

2278492 is a wasteful number, since it uses less digits than its factorization.

2278492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569627 (or 569625 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 2278492 is about 1509.4674557605. The cubic root of 2278492 is about 131.5878636147.

It can be divided in two parts, 22784 and 92, that multiplied together give a triangular number (2096128 = T₂₀₄₇).

The spelling of 2278492 in words is "two million, two hundred seventy-eight thousand, four hundred ninety-two".