2571238 has 4 divisors (see below), whose sum is σ = 3856860. Its totient is φ = 1285618.

The previous prime is 2571209. The next prime is 2571269. The reversal of 2571238 is 8321752.

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

It is a super-2 number, since 2×2571238² = 13222529705288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642808 + ... + 642811.

It is an arithmetic number, because the mean of its divisors is an integer number (964215).

2^2571238 is an apocalyptic number.

2571238 is a deficient number, since it is larger than the sum of its proper divisors (1285622).

2571238 is a wasteful number, since it uses less digits than its factorization.

2571238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285621.

The product of its digits is 3360, while the sum is 28.

The square root of 2571238 is about 1603.5080292908. The cubic root of 2571238 is about 136.9979575947.

It can be divided in two parts, 2571 and 238, that added together give a square (2809 = 53²).

The spelling of 2571238 in words is "two million, five hundred seventy-one thousand, two hundred thirty-eight".