1661468 has 12 divisors (see below), whose sum is σ = 3008040. Its totient is φ = 802032.

The previous prime is 1661447. The next prime is 1661479. The reversal of 1661468 is 8641661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7046 + ... + 7277.

It is an arithmetic number, because the mean of its divisors is an integer number (250670).

2^1661468 is an apocalyptic number.

It is an amenable number.

1661468 is a deficient number, since it is larger than the sum of its proper divisors (1346572).

1661468 is a wasteful number, since it uses less digits than its factorization.

1661468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14356 (or 14354 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1661468 is about 1288.9794412635. The cubic root of 1661468 is about 118.4397077373.

The spelling of 1661468 in words is "one million, six hundred sixty-one thousand, four hundred sixty-eight".