2638562 has 4 divisors (see below), whose sum is σ = 3957846. Its totient is φ = 1319280.

The previous prime is 2638561. The next prime is 2638567. The reversal of 2638562 is 2658362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2163841 + 474721 = 1471^2 + 689^2 .

It is a d-powerful number, because it can be written as 2⁴ + 6⁴ + 3¹² + 8⁷ + 5⁴ + 6⁵ + 2⁸ .

It is not an unprimeable number, because it can be changed into a prime (2638561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659639 + ... + 659642.

2^2638562 is an apocalyptic number.

2638562 is a deficient number, since it is larger than the sum of its proper divisors (1319284).

2638562 is a wasteful number, since it uses less digits than its factorization.

2638562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319283.

The product of its digits is 17280, while the sum is 32.

The square root of 2638562 is about 1624.3651067417. The cubic root of 2638562 is about 138.1833661320.

The spelling of 2638562 in words is "two million, six hundred thirty-eight thousand, five hundred sixty-two".