2152426 has 4 divisors (see below), whose sum is σ = 3228642. Its totient is φ = 1076212.

The previous prime is 2152399. The next prime is 2152427. The reversal of 2152426 is 6242512.

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., 2030625 + 121801 = 1425^2 + 349^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2³ + 1 + 5⁸ + 2¹⁴ + 4⁴ + 2¹⁶ + 6⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 2152397 and 2152406.

It is not an unprimeable number, because it can be changed into a prime (2152427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538105 + ... + 538108.

2^2152426 is an apocalyptic number.

2152426 is a deficient number, since it is larger than the sum of its proper divisors (1076216).

2152426 is a wasteful number, since it uses less digits than its factorization.

2152426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076215.

The product of its digits is 960, while the sum is 22.

The square root of 2152426 is about 1467.1148557628. The cubic root of 2152426 is about 129.1148147525.

Adding to 2152426 its reverse (6242512), we get a palindrome (8394938).

The spelling of 2152426 in words is "two million, one hundred fifty-two thousand, four hundred twenty-six".