1023201872 has 160 divisors (see below), whose sum is σ = 2593357824. Its totient is φ = 379468800.

The previous prime is 1023201859. The next prime is 1023201911. The reversal of 1023201872 is 2781023201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2787833 + ... + 2788199.

Almost surely, 2^1023201872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023201872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296678912).

1023201872 is an abundant number, since it is smaller than the sum of its proper divisors (1570155952).

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

1023201872 is a wasteful number, since it uses less digits than its factorization.

1023201872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1023201872 is about 31987.5268190587. The cubic root of 1023201872 is about 1007.6749025103.

The spelling of 1023201872 in words is "one billion, twenty-three million, two hundred one thousand, eight hundred seventy-two".