37873640 has 64 divisors (see below), whose sum is σ = 101640960. Its totient is φ = 12418560.

The previous prime is 37873639. The next prime is 37873643. The reversal of 37873640 is 4637873.

37873640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 37873594 and 37873603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37873643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3500 + ... + 9380.

It is an arithmetic number, because the mean of its divisors is an integer number (1588140).

Almost surely, 2^37873640 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 37873640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50820480).

37873640 is an abundant number, since it is smaller than the sum of its proper divisors (63767320).

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

37873640 is a wasteful number, since it uses less digits than its factorization.

37873640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922 (or 5918 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 37873640 is about 6154.1563191066. The cubic root of 37873640 is about 335.8244784318.

The spelling of 37873640 in words is "thirty-seven million, eight hundred seventy-three thousand, six hundred forty".