3078690 has 32 divisors (see below), whose sum is σ = 7572096. Its totient is φ = 800640.

The previous prime is 3078689. The next prime is 3078721. The reversal of 3078690 is 968703.

It is a happy number.

It is a super-2 number, since 2×3078690² = 18956664232200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22 + ... + 2481.

It is an arithmetic number, because the mean of its divisors is an integer number (236628).

Almost surely, 2^3078690 is an apocalyptic number.

3078690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3078690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3786048).

3078690 is an abundant number, since it is smaller than the sum of its proper divisors (4493406).

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

3078690 is a wasteful number, since it uses less digits than its factorization.

3078690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 3078690 is about 1754.6196168971. The cubic root of 3078690 is about 145.4750964097.

It can be divided in two parts, 30786 and 90, that added together give a triangular number (30876 = T₂₄₈).

The spelling of 3078690 in words is "three million, seventy-eight thousand, six hundred ninety".