5649378 has 32 divisors (see below), whose sum is σ = 13332480. Its totient is φ = 1561680.

The previous prime is 5649367. The next prime is 5649401. The reversal of 5649378 is 8739465.

It is a happy number.

5649378 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868 + ... + 3471.

It is an arithmetic number, because the mean of its divisors is an integer number (416640).

Almost surely, 2^5649378 is an apocalyptic number.

5649378 is an abundant number, since it is smaller than the sum of its proper divisors (7683102).

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

5649378 is a wasteful number, since it uses less digits than its factorization.

5649378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382.

The product of its digits is 181440, while the sum is 42.

The square root of 5649378 is about 2376.8420225164. The cubic root of 5649378 is about 178.1012133211.

The spelling of 5649378 in words is "five million, six hundred forty-nine thousand, three hundred seventy-eight".