2523946 has 4 divisors (see below), whose sum is σ = 3785922. Its totient is φ = 1261972.

The previous prime is 2523943. The next prime is 2523949. The reversal of 2523946 is 6493252.

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

It is an interprime number because it is at equal distance from previous prime (2523943) and next prime (2523949).

It can be written as a sum of positive squares in only one way, i.e., 1792921 + 731025 = 1339^2 + 855^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2523943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630985 + ... + 630988.

2^2523946 is an apocalyptic number.

2523946 is a deficient number, since it is larger than the sum of its proper divisors (1261976).

2523946 is a wasteful number, since it uses less digits than its factorization.

2523946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261975.

The product of its digits is 12960, while the sum is 31.

The square root of 2523946 is about 1588.6931736493. The cubic root of 2523946 is about 136.1528342388.

The spelling of 2523946 in words is "two million, five hundred twenty-three thousand, nine hundred forty-six".