1662464 has 40 divisors (see below), whose sum is σ = 3535488. Its totient is φ = 778240.

The previous prime is 1662457. The next prime is 1662467. The reversal of 1662464 is 4642661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8609 + ... + 8799.

2^1662464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1767744).

1662464 is an abundant number, since it is smaller than the sum of its proper divisors (1873024).

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

1662464 is an equidigital number, since it uses as much as digits as its factorization.

1662464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 210 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 1662464 is about 1289.3657355460. The cubic root of 1662464 is about 118.4633700215.

The spelling of 1662464 in words is "one million, six hundred sixty-two thousand, four hundred sixty-four".