38143672 has 16 divisors (see below), whose sum is σ = 81736560. Its totient is φ = 16347264.

The previous prime is 38143639. The next prime is 38143673. The reversal of 38143672 is 27634183.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38143673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340513 + ... + 340624.

It is an arithmetic number, because the mean of its divisors is an integer number (5108535).

Almost surely, 2^38143672 is an apocalyptic number.

It is an amenable number.

38143672 is an abundant number, since it is smaller than the sum of its proper divisors (43592888).

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

38143672 is a wasteful number, since it uses less digits than its factorization.

38143672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681150 (or 681146 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 38143672 is about 6176.0563468932. The cubic root of 38143672 is about 336.6207110861.

The spelling of 38143672 in words is "thirty-eight million, one hundred forty-three thousand, six hundred seventy-two".