1956618 has 24 divisors (see below), whose sum is σ = 4301856. Its totient is φ = 642600.

The previous prime is 1956613. The next prime is 1956631. The reversal of 1956618 is 8166591.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1956611) 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, 513 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (179244).

2^1956618 is an apocalyptic number.

1956618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1956618 is an abundant number, since it is smaller than the sum of its proper divisors (2345238).

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

1956618 is a wasteful number, since it uses less digits than its factorization.

1956618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 1607 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 1956618 is about 1398.7916213647. The cubic root of 1956618 is about 125.0744729548.

The spelling of 1956618 in words is "one million, nine hundred fifty-six thousand, six hundred eighteen".