1601863464 has 32 divisors (see below), whose sum is σ = 4030175520. Its totient is φ = 530552256.

The previous prime is 1601863453. The next prime is 1601863513. The reversal of 1601863464 is 4643681061.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 208794 + ... + 216329.

It is an arithmetic number, because the mean of its divisors is an integer number (125942985).

Almost surely, 2^1601863464 is an apocalyptic number.

It is an amenable number.

1601863464 is an abundant number, since it is smaller than the sum of its proper divisors (2428312056).

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

1601863464 is a wasteful number, since it uses less digits than its factorization.

1601863464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425289 (or 425285 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1601863464 is about 40023.2865217238. The cubic root of 1601863464 is about 1170.0609859364.

The spelling of 1601863464 in words is "one billion, six hundred one million, eight hundred sixty-three thousand, four hundred sixty-four".