1684916442 has 96 divisors (see below), whose sum is σ = 4087010304. Its totient is φ = 497296800.

The previous prime is 1684916423. The next prime is 1684916459. The reversal of 1684916442 is 2446194861.

1684916442 is a `hidden beast` number, since 1 + 68 + 491 + 64 + 42 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3080013 + ... + 3080559.

It is an arithmetic number, because the mean of its divisors is an integer number (42573024).

Almost surely, 2^1684916442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1684916442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2043505152).

1684916442 is an abundant number, since it is smaller than the sum of its proper divisors (2402093862).

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

1684916442 is a wasteful number, since it uses less digits than its factorization.

1684916442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 941 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 1684916442 is about 41047.7337011436. The cubic root of 1684916442 is about 1189.9429019517.

The spelling of 1684916442 in words is "one billion, six hundred eighty-four million, nine hundred sixteen thousand, four hundred forty-two".