1578241 has 12 divisors (see below), whose sum is σ = 1896960. Its totient is φ = 1307880.

The previous prime is 1578221. The next prime is 1578257. The reversal of 1578241 is 1428751.

It is not a de Polignac number, because 1578241 - 2⁹ = 1577729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1578221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000 + ... + 2038.

It is an arithmetic number, because the mean of its divisors is an integer number (158080).

2^1578241 is an apocalyptic number.

It is an amenable number.

1578241 is a deficient number, since it is larger than the sum of its proper divisors (318719).

1578241 is a wasteful number, since it uses less digits than its factorization.

1578241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1077 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 1578241 is about 1256.2806215173. The cubic root of 1578241 is about 116.4280902356.

The spelling of 1578241 in words is "one million, five hundred seventy-eight thousand, two hundred forty-one".