2509442 has 8 divisors (see below), whose sum is σ = 4053756. Its totient is φ = 1158192.

The previous prime is 2509433. The next prime is 2509483. The reversal of 2509442 is 2449052.

It can be written as a sum of positive squares in 2 ways, for example, as 2430481 + 78961 = 1559^2 + 281^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 96517 = 2509442 / (2 + 5 + 0 + 9 + 4 + 4 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48233 + ... + 48284.

2^2509442 is an apocalyptic number.

2509442 is a deficient number, since it is larger than the sum of its proper divisors (1544314).

2509442 is a wasteful number, since it uses less digits than its factorization.

2509442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96532.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2509442 is about 1584.1218387485. The cubic root of 2509442 is about 135.8915297151.

The spelling of 2509442 in words is "two million, five hundred nine thousand, four hundred forty-two".