2621043 has 24 divisors (see below), whose sum is σ = 4125888. Its totient is φ = 1596672.

The previous prime is 2621033. The next prime is 2621053. The reversal of 2621043 is 3401262.

It is a happy number.

2621043 is a `hidden beast` number, since 2 + 621 + 0 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (2621033) and next prime (2621053).

It is not a de Polignac number, because 2621043 - 2⁴ = 2621027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2621023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5430 + ... + 5892.

It is an arithmetic number, because the mean of its divisors is an integer number (171912).

2^2621043 is an apocalyptic number.

2621043 is a deficient number, since it is larger than the sum of its proper divisors (1504845).

2621043 is a wasteful number, since it uses less digits than its factorization.

2621043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2621043 is about 1618.9635573415. The cubic root of 2621043 is about 137.8768592754.

The spelling of 2621043 in words is "two million, six hundred twenty-one thousand, forty-three".