38541890 has 32 divisors (see below), whose sum is σ = 73903104. Its totient is φ = 14421760.

The previous prime is 38541887. The next prime is 38541911. The reversal of 38541890 is 9814583.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31877 + ... + 33063.

It is an arithmetic number, because the mean of its divisors is an integer number (2309472).

Almost surely, 2^38541890 is an apocalyptic number.

38541890 is a deficient number, since it is larger than the sum of its proper divisors (35361214).

38541890 is a wasteful number, since it uses less digits than its factorization.

38541890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 38541890 is about 6208.2114976859. The cubic root of 38541890 is about 337.7880923754.

The spelling of 38541890 in words is "thirty-eight million, five hundred forty-one thousand, eight hundred ninety".