1621468 has 12 divisors (see below), whose sum is σ = 2907072. Its totient is φ = 790880.

The previous prime is 1621457. The next prime is 1621469. The reversal of 1621468 is 8641261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1621469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4780 + ... + 5107.

It is an arithmetic number, because the mean of its divisors is an integer number (242256).

2^1621468 is an apocalyptic number.

It is an amenable number.

1621468 is a deficient number, since it is larger than the sum of its proper divisors (1285604).

1621468 is a wasteful number, since it uses less digits than its factorization.

1621468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9932 (or 9930 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1621468 is about 1273.3687604147. The cubic root of 1621468 is about 117.4814939921.

The spelling of 1621468 in words is "one million, six hundred twenty-one thousand, four hundred sixty-eight".