38485890 has 24 divisors (see below), whose sum is σ = 100063548. Its totient is φ = 10262880.

The previous prime is 38485873. The next prime is 38485907. The reversal of 38485890 is 9858483.

38485890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38485873) and next prime (38485907).

It can be written as a sum of positive squares in 2 ways, for example, as 38452401 + 33489 = 6201^2 + 183^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213721 + ... + 213900.

Almost surely, 2^38485890 is an apocalyptic number.

38485890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38485890 is an abundant number, since it is smaller than the sum of its proper divisors (61577658).

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

38485890 is a wasteful number, since it uses less digits than its factorization.

38485890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427634 (or 427631 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 38485890 is about 6203.6997025968. The cubic root of 38485890 is about 337.6244150357.

The spelling of 38485890 in words is "thirty-eight million, four hundred eighty-five thousand, eight hundred ninety".