1662326442 has 64 divisors (see below), whose sum is σ = 4265399040. Its totient is φ = 470043648.

The previous prime is 1662326441. The next prime is 1662326443. The reversal of 1662326442 is 2446232661.

1662326442 is a `hidden beast` number, since 1 + 6 + 6 + 2 + 3 + 2 + 644 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1662326441) and next prime (1662326443).

It is a junction number, because it is equal to n+sod(n) for n = 1662326397 and 1662326406.

It is not an unprimeable number, because it can be changed into a prime (1662326441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13998 + ... + 59334.

It is an arithmetic number, because the mean of its divisors is an integer number (66646860).

Almost surely, 2^1662326442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662326442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2132699520).

1662326442 is an abundant number, since it is smaller than the sum of its proper divisors (2603072598).

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

1662326442 is a wasteful number, since it uses less digits than its factorization.

1662326442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45452 (or 45446 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 1662326442 is about 40771.6377154512. The cubic root of 1662326442 is about 1184.6010257561.

The spelling of 1662326442 in words is "one billion, six hundred sixty-two million, three hundred twenty-six thousand, four hundred forty-two".