1973403872 has 24 divisors (see below), whose sum is σ = 4238334072. Its totient is φ = 897001600.

The previous prime is 1973403847. The next prime is 1973403947. The reversal of 1973403872 is 2783043791.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2802779 + ... + 2803482.

It is an arithmetic number, because the mean of its divisors is an integer number (176597253).

Almost surely, 2^1973403872 is an apocalyptic number.

It is an amenable number.

1973403872 is an abundant number, since it is smaller than the sum of its proper divisors (2264930200).

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

1973403872 is a wasteful number, since it uses less digits than its factorization.

1973403872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606282 (or 5606274 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 1973403872 is about 44423.0106138699. The cubic root of 1973403872 is about 1254.3112726076.

The spelling of 1973403872 in words is "one billion, nine hundred seventy-three million, four hundred three thousand, eight hundred seventy-two".