5421378 has 8 divisors (see below), whose sum is σ = 10842768. Its totient is φ = 1807124.

The previous prime is 5421371. The next prime is 5421407. The reversal of 5421378 is 8731245.

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

5421378 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5421371) 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, 451776 + ... + 451787.

It is an arithmetic number, because the mean of its divisors is an integer number (1355346).

Almost surely, 2^5421378 is an apocalyptic number.

5421378 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.

5421378 is a wasteful number, since it uses less digits than its factorization.

5421378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903568.

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

The square root of 5421378 is about 2328.3852773972. The cubic root of 5421378 is about 175.6722766727.

The spelling of 5421378 in words is "five million, four hundred twenty-one thousand, three hundred seventy-eight".