3081402 has 40 divisors (see below), whose sum is σ = 7213536. Its totient is φ = 981288.

The previous prime is 3081391. The next prime is 3081413. The reversal of 3081402 is 2041803.

It is a happy number.

3081402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3081391) and next prime (3081413).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3313 + ... + 4139.

Almost surely, 2^3081402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3081402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3606768).

3081402 is an abundant number, since it is smaller than the sum of its proper divisors (4132134).

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

3081402 is a wasteful number, since it uses less digits than its factorization.

3081402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 855 counting only the distinct ones).

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

The square root of 3081402 is about 1755.3922638544. The cubic root of 3081402 is about 145.5177999267.

The spelling of 3081402 in words is "three million, eighty-one thousand, four hundred two".