1578078 has 12 divisors (see below), whose sum is σ = 3419208. Its totient is φ = 526020.

The previous prime is 1578077. The next prime is 1578091. The reversal of 1578078 is 8708751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1578077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43818 + ... + 43853.

It is an arithmetic number, because the mean of its divisors is an integer number (284934).

2^1578078 is an apocalyptic number.

1578078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1578078 is an abundant number, since it is smaller than the sum of its proper divisors (1841130).

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

1578078 is a wasteful number, since it uses less digits than its factorization.

1578078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87679 (or 87676 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 1578078 is about 1256.2157458017. The cubic root of 1578078 is about 116.4240818846.

The spelling of 1578078 in words is "one million, five hundred seventy-eight thousand, seventy-eight".