2864340 has 36 divisors (see below), whose sum is σ = 8689044. Its totient is φ = 763776.

The previous prime is 2864339. The next prime is 2864341. The reversal of 2864340 is 434682.

It is an interprime number because it is at equal distance from previous prime (2864339) and next prime (2864341).

It can be written as a sum of positive squares in 2 ways, for example, as 1710864 + 1153476 = 1308^2 + 1074^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7777 + ... + 8136.

2^2864340 is an apocalyptic number.

2864340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2864340 is an abundant number, since it is smaller than the sum of its proper divisors (5824704).

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

2864340 is a wasteful number, since it uses less digits than its factorization.

2864340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15928 (or 15923 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2864340 is about 1692.4361140084. The cubic root of 2864340 is about 142.0173885999.

The spelling of 2864340 in words is "two million, eight hundred sixty-four thousand, three hundred forty".