2451378 has 8 divisors (see below), whose sum is σ = 4902768. Its totient is φ = 817124.

The previous prime is 2451377. The next prime is 2451389. The reversal of 2451378 is 8731542.

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

2451378 is an admirable number.

It is a super-4 number, since 4×2451378⁴ (a number of 27 digits) contains 4444 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2451377) 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, 204276 + ... + 204287.

It is an arithmetic number, because the mean of its divisors is an integer number (612846).

2^2451378 is an apocalyptic number.

2451378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2451378 is a wasteful number, since it uses less digits than its factorization.

2451378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408568.

The product of its digits is 6720, while the sum is 30.

The square root of 2451378 is about 1565.6877083250. The cubic root of 2451378 is about 134.8352448293.

The spelling of 2451378 in words is "two million, four hundred fifty-one thousand, three hundred seventy-eight".