2571442 has 8 divisors (see below), whose sum is σ = 3883500. Its totient is φ = 1276944.

The previous prime is 2571427. The next prime is 2571449. The reversal of 2571442 is 2441752.

It can be written as a sum of positive squares in 2 ways, for example, as 2556801 + 14641 = 1599^2 + 121^2 .

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

It is a super-2 number, since 2×2571442² = 13224627918728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2571449) 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, 4017 + ... + 4612.

2^2571442 is an apocalyptic number.

2571442 is a deficient number, since it is larger than the sum of its proper divisors (1312058).

2571442 is a wasteful number, since it uses less digits than its factorization.

2571442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8780.

The product of its digits is 2240, while the sum is 25.

The square root of 2571442 is about 1603.5716385619. The cubic root of 2571442 is about 137.0015806023.

The spelling of 2571442 in words is "two million, five hundred seventy-one thousand, four hundred forty-two".