2642536 has 16 divisors (see below), whose sum is σ = 5336100. Its totient is φ = 1219584.

The previous prime is 2642513. The next prime is 2642537. The reversal of 2642536 is 6352462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2160900 + 481636 = 1470^2 + 694^2 .

It is a super-2 number, since 2×2642536² = 13965993022592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2642537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12601 + ... + 12808.

2^2642536 is an apocalyptic number.

2642536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2642536 is an abundant number, since it is smaller than the sum of its proper divisors (2693564).

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

2642536 is a wasteful number, since it uses less digits than its factorization.

2642536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25428 (or 25424 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 2642536 is about 1625.5878936557. The cubic root of 2642536 is about 138.2527050669.

Adding to 2642536 its reverse (6352462), we get a palindrome (8994998).

The spelling of 2642536 in words is "two million, six hundred forty-two thousand, five hundred thirty-six".