1662043392 has 108 divisors (see below), whose sum is σ = 5044428480. Its totient is φ = 524841984.

The previous prime is 1662043391. The next prime is 1662043421. The reversal of 1662043392 is 2933402661.

1662043392 is a `hidden beast` number, since 1 + 66 + 204 + 3 + 392 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662043391) 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, 24793 + ... + 62759.

Almost surely, 2^1662043392 is an apocalyptic number.

1662043392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662043392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2522214240).

1662043392 is an abundant number, since it is smaller than the sum of its proper divisors (3382385088).

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

1662043392 is a wasteful number, since it uses less digits than its factorization.

1662043392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38008 (or 37991 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 1662043392 is about 40768.1664046839. The cubic root of 1662043392 is about 1184.5337865856.

The spelling of 1662043392 in words is "one billion, six hundred sixty-two million, forty-three thousand, three hundred ninety-two".