1601959326 has 64 divisors (see below), whose sum is σ = 3599963136. Its totient is φ = 470966400.

The previous prime is 1601959321. The next prime is 1601959409. The reversal of 1601959326 is 6239591061.

It is a super-3 number, since 3×1601959326³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601959321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1125051 + ... + 1126473.

It is an arithmetic number, because the mean of its divisors is an integer number (56249424).

Almost surely, 2^1601959326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1601959326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1799981568).

1601959326 is an abundant number, since it is smaller than the sum of its proper divisors (1998003810).

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

1601959326 is a wasteful number, since it uses less digits than its factorization.

1601959326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1601959326 is about 40024.4840816218. The cubic root of 1601959326 is about 1170.0843258676.

The spelling of 1601959326 in words is "one billion, six hundred one million, nine hundred fifty-nine thousand, three hundred twenty-six".