38458840 has 32 divisors (see below), whose sum is σ = 98894880. Its totient is φ = 13185792.

The previous prime is 38458789. The next prime is 38458891. The reversal of 38458840 is 4885483.

38458840 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 (38458789) and next prime (38458891).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 38458793 and 38458802.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 68397 + ... + 68956.

It is an arithmetic number, because the mean of its divisors is an integer number (3090465).

Almost surely, 2^38458840 is an apocalyptic number.

It is an amenable number.

38458840 is an abundant number, since it is smaller than the sum of its proper divisors (60436040).

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

38458840 is a wasteful number, since it uses less digits than its factorization.

38458840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137371 (or 137367 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 38458840 is about 6201.5191687199. The cubic root of 38458840 is about 337.5452961610.

The spelling of 38458840 in words is "thirty-eight million, four hundred fifty-eight thousand, eight hundred forty".