2678690 has 32 divisors (see below), whose sum is σ = 5837184. Its totient is φ = 864000.

The previous prime is 2678681. The next prime is 2678699. The reversal of 2678690 is 968762.

2678690 = T₂₄₆ + T₂₄₇ + ... + T₃₁₃.

It is an interprime number because it is at equal distance from previous prime (2678681) and next prime (2678699).

It is a super-2 number, since 2×2678690² = 14350760232200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2678699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65 + ... + 2315.

It is an arithmetic number, because the mean of its divisors is an integer number (182412).

2^2678690 is an apocalyptic number.

2678690 is an abundant number, since it is smaller than the sum of its proper divisors (3158494).

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

2678690 is a wasteful number, since it uses less digits than its factorization.

2678690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2678690 is about 1636.6704005389. The cubic root of 2678690 is about 138.8803552683.

The spelling of 2678690 in words is "two million, six hundred seventy-eight thousand, six hundred ninety".