38140780 has 24 divisors (see below), whose sum is σ = 80212608. Its totient is φ = 15234048.

The previous prime is 38140723. The next prime is 38140787. The reversal of 38140780 is 8704183.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38140787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23557 + ... + 25123.

It is an arithmetic number, because the mean of its divisors is an integer number (3342192).

Almost surely, 2^38140780 is an apocalyptic number.

It is an amenable number.

38140780 is an abundant number, since it is smaller than the sum of its proper divisors (42071828).

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

38140780 is a wasteful number, since it uses less digits than its factorization.

38140780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793 (or 2791 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 38140780 is about 6175.8222124669. The cubic root of 38140780 is about 336.6122035002.

The spelling of 38140780 in words is "thirty-eight million, one hundred forty thousand, seven hundred eighty".