1662146244 has 192 divisors, whose sum is σ = 4972584960. Its totient is φ = 481140000.

The previous prime is 1662146243. The next prime is 1662146249. The reversal of 1662146244 is 4426412661.

1662146244 is a `hidden beast` number, since 1 + 6 + 6 + 21 + 4 + 624 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1662146199 and 1662146208.

It is not an unprimeable number, because it can be changed into a prime (1662146243) 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 63 ways as a sum of consecutive naturals, for example, 2212869 + ... + 2213619.

It is an arithmetic number, because the mean of its divisors is an integer number (25898880).

Almost surely, 2^1662146244 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 1662146244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2486292480).

1662146244 is an abundant number, since it is smaller than the sum of its proper divisors (3310438716).

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

1662146244 is a wasteful number, since it uses less digits than its factorization.

1662146244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 790 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 1662146244 is about 40769.4278105543. The cubic root of 1662146244 is about 1184.5582201948.

The spelling of 1662146244 in words is "one billion, six hundred sixty-two million, one hundred forty-six thousand, two hundred forty-four".