872037940 has 24 divisors (see below), whose sum is σ = 1833095880. Its totient is φ = 348469248.

The previous prime is 872037937. The next prime is 872037989. The reversal of 872037940 is 49730278.

It can be written as a sum of positive squares in 4 ways, for example, as 433805584 + 438232356 = 20828^2 + 20934^2 .

It is a junction number, because it is equal to n+sod(n) for n = 872037893 and 872037902.

It is a congruent number.

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, 445 + ... + 41764.

It is an arithmetic number, because the mean of its divisors is an integer number (76378995).

Almost surely, 2^872037940 is an apocalyptic number.

It is an amenable number.

872037940 is an abundant number, since it is smaller than the sum of its proper divisors (961057940).

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

872037940 is a wasteful number, since it uses less digits than its factorization.

872037940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43251 (or 43249 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 872037940 is about 29530.2885187395. The cubic root of 872037940 is about 955.3850918106.

The spelling of 872037940 in words is "eight hundred seventy-two million, thirty-seven thousand, nine hundred forty".