2452378 has 4 divisors (see below), whose sum is σ = 3678570. Its totient is φ = 1226188.

The previous prime is 2452367. The next prime is 2452393. The reversal of 2452378 is 8732542.

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., 2442969 + 9409 = 1563^2 + 97^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613093 + ... + 613096.

2^2452378 is an apocalyptic number.

2452378 is a deficient number, since it is larger than the sum of its proper divisors (1226192).

2452378 is a wasteful number, since it uses less digits than its factorization.

2452378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226191.

The product of its digits is 13440, while the sum is 31.

The square root of 2452378 is about 1566.0070242499. The cubic root of 2452378 is about 134.8535769558.

The spelling of 2452378 in words is "two million, four hundred fifty-two thousand, three hundred seventy-eight".