1662944624 has 60 divisors (see below), whose sum is σ = 3749884992. Its totient is φ = 711406080.

The previous prime is 1662944609. The next prime is 1662944627. The reversal of 1662944624 is 4264492661.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662944627) 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, 7649 + ... + 58175.

Almost surely, 2^1662944624 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 1662944624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1874942496).

1662944624 is an abundant number, since it is smaller than the sum of its proper divisors (2086940368).

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

1662944624 is a wasteful number, since it uses less digits than its factorization.

1662944624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50574 (or 50557 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

The square root of 1662944624 is about 40779.2180405657. The cubic root of 1662944624 is about 1184.7478497606.

The spelling of 1662944624 in words is "one billion, six hundred sixty-two million, nine hundred forty-four thousand, six hundred twenty-four".