1601342538 has 16 divisors (see below), whose sum is σ = 3223086240. Its totient is φ = 530380656.

The previous prime is 1601342521. The next prime is 1601342543. The reversal of 1601342538 is 8352431061.

1601342538 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1601342499 and 1601342508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849028 + ... + 850911.

It is an arithmetic number, because the mean of its divisors is an integer number (201442890).

Almost surely, 2^1601342538 is an apocalyptic number.

1601342538 is an abundant number, since it is smaller than the sum of its proper divisors (1621743702).

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

1601342538 is a wasteful number, since it uses less digits than its factorization.

1601342538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700101.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1601342538 is about 40016.7782061475. The cubic root of 1601342538 is about 1169.9341375738.

Adding to 1601342538 its reverse (8352431061), we get a palindrome (9953773599).

The spelling of 1601342538 in words is "one billion, six hundred one million, three hundred forty-two thousand, five hundred thirty-eight".