38541840 has 40 divisors (see below), whose sum is σ = 119480448. Its totient is φ = 10277760.

The previous prime is 38541821. The next prime is 38541847. The reversal of 38541840 is 4814583.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (38541847) 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, 80056 + ... + 80535.

Almost surely, 2^38541840 is an apocalyptic number.

38541840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38541840 is an abundant number, since it is smaller than the sum of its proper divisors (80938608).

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

38541840 is a wasteful number, since it uses less digits than its factorization.

38541840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160607 (or 160601 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 38541840 is about 6208.2074707600. The cubic root of 38541840 is about 337.7879463057.

The spelling of 38541840 in words is "thirty-eight million, five hundred forty-one thousand, eight hundred forty".