2258623 has 8 divisors (see below), whose sum is σ = 2371968. Its totient is φ = 2146584.

The previous prime is 2258621. The next prime is 2258639. The reversal of 2258623 is 3268522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2258623 - 2¹ = 2258621 is a prime.

It is a super-2 number, since 2×2258623² = 10202755712258, which contains 22 as substring.

It is a Duffinian number.

2258623 is a lucky number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 2258591 and 2258600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6336 + ... + 6682.

It is an arithmetic number, because the mean of its divisors is an integer number (296496).

2^2258623 is an apocalyptic number.

2258623 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2258623 is a deficient number, since it is larger than the sum of its proper divisors (113345).

2258623 is a wasteful number, since it uses less digits than its factorization.

2258623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its digits is 5760, while the sum is 28.

The square root of 2258623 is about 1502.8715846672. The cubic root of 2258623 is about 131.2042537474.

The spelling of 2258623 in words is "two million, two hundred fifty-eight thousand, six hundred twenty-three".