38255040 has 168 divisors, whose sum is σ = 135514080. Its totient is φ = 9897984.

The previous prime is 38255027. The next prime is 38255047. The reversal of 38255040 is 4055283.

It is a junction number, because it is equal to n+sod(n) for n = 38254995 and 38255013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38255047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106381 + ... + 106739.

Almost surely, 2^38255040 is an apocalyptic number.

38255040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38255040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67757040).

38255040 is an abundant number, since it is smaller than the sum of its proper divisors (97259040).

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

38255040 is a wasteful number, since it uses less digits than its factorization.

38255040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 38255040 is about 6185.0658848552. The cubic root of 38255040 is about 336.9480030252.

The spelling of 38255040 in words is "thirty-eight million, two hundred fifty-five thousand, forty".