2811402 has 32 divisors (see below), whose sum is σ = 6816960. Its totient is φ = 851760.

The previous prime is 2811397. The next prime is 2811407. The reversal of 2811402 is 2041182.

It is an interprime number because it is at equal distance from previous prime (2811397) and next prime (2811407).

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

It is not an unprimeable number, because it can be changed into a prime (2811407) 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, 1773 + ... + 2960.

It is an arithmetic number, because the mean of its divisors is an integer number (213030).

2^2811402 is an apocalyptic number.

2811402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2811402 is an abundant number, since it is smaller than the sum of its proper divisors (4005558).

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

2811402 is a wasteful number, since it uses less digits than its factorization.

2811402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4749 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2811402 is about 1676.7235908163. The cubic root of 2811402 is about 141.1370329179.

Adding to 2811402 its reverse (2041182), we get a palindrome (4852584).

The spelling of 2811402 in words is "two million, eight hundred eleven thousand, four hundred two".