1641305442 has 32 divisors (see below), whose sum is σ = 3838804992. Its totient is φ = 458038224.

The previous prime is 1641305441. The next prime is 1641305453. The reversal of 1641305442 is 2445031461.

It is not an unprimeable number, because it can be changed into a prime (1641305441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452598 + ... + 456209.

It is an arithmetic number, because the mean of its divisors is an integer number (119962656).

Almost surely, 2^1641305442 is an apocalyptic number.

1641305442 is an abundant number, since it is smaller than the sum of its proper divisors (2197499550).

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

1641305442 is a wasteful number, since it uses less digits than its factorization.

1641305442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908862.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1641305442 is about 40513.0280527141. The cubic root of 1641305442 is about 1179.5865261108.

The spelling of 1641305442 in words is "one billion, six hundred forty-one million, three hundred five thousand, four hundred forty-two".