3081420 has 144 divisors (see below), whose sum is σ = 10614240. Its totient is φ = 718848.

The previous prime is 3081413. The next prime is 3081433. The reversal of 3081420 is 241803.

3081420 = T₅₆₀ + T₅₆₁ + ... + T₅₇₈.

3081420 = 131² + 132² + ... + 225².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3081393 and 3081402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58114 + ... + 58166.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

Almost surely, 2^3081420 is an apocalyptic number.

3081420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3081420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5307120).

3081420 is an abundant number, since it is smaller than the sum of its proper divisors (7532820).

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

3081420 is a wasteful number, since it uses less digits than its factorization.

3081420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3081420 is about 1755.3973909061. The cubic root of 3081420 is about 145.5180832734.

It can be divided in two parts, 308 and 1420, that added together give a cube (1728 = 12³).

The spelling of 3081420 in words is "three million, eighty-one thousand, four hundred twenty".