38143772 has 6 divisors (see below), whose sum is σ = 66751608. Its totient is φ = 19071884.

The previous prime is 38143771. The next prime is 38143799. The reversal of 38143772 is 27734183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38143771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4767968 + ... + 4767975.

It is an arithmetic number, because the mean of its divisors is an integer number (11125268).

Almost surely, 2^38143772 is an apocalyptic number.

It is an amenable number.

38143772 is a deficient number, since it is larger than the sum of its proper divisors (28607836).

38143772 is a wasteful number, since it uses less digits than its factorization.

38143772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9535947 (or 9535945 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 38143772 is about 6176.0644426690. The cubic root of 38143772 is about 336.6210052550.

The spelling of 38143772 in words is "thirty-eight million, one hundred forty-three thousand, seven hundred seventy-two".