38242240 has 56 divisors (see below), whose sum is σ = 91878912. Its totient is φ = 15160320.

The previous prime is 38242219. The next prime is 38242247. The reversal of 38242240 is 4224283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38242247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40170 + ... + 41110.

Almost surely, 2^38242240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38242240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45939456).

38242240 is an abundant number, since it is smaller than the sum of its proper divisors (53636672).

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

38242240 is a wasteful number, since it uses less digits than its factorization.

38242240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 38242240 is about 6184.0310477875. The cubic root of 38242240 is about 336.9104182995.

The spelling of 38242240 in words is "thirty-eight million, two hundred forty-two thousand, two hundred forty".