1601331460 has 24 divisors (see below), whose sum is σ = 3374947800. Its totient is φ = 638217984.

The previous prime is 1601331409. The next prime is 1601331463. The reversal of 1601331460 is 641331061.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12830724 + 1588500736 = 3582^2 + 39856^2 .

It is not an unprimeable number, because it can be changed into a prime (1601331463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138985 + ... + 150064.

It is an arithmetic number, because the mean of its divisors is an integer number (140622825).

Almost surely, 2^1601331460 is an apocalyptic number.

1601331460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1601331460 is an abundant number, since it is smaller than the sum of its proper divisors (1773616340).

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

1601331460 is a wasteful number, since it uses less digits than its factorization.

1601331460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289335 (or 289333 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1601331460 is about 40016.6397889678. The cubic root of 1601331460 is about 1169.9314397208.

The spelling of 1601331460 in words is "one billion, six hundred one million, three hundred thirty-one thousand, four hundred sixty".