38049240 has 32 divisors (see below), whose sum is σ = 114148080. Its totient is φ = 10146432.

The previous prime is 38049223. The next prime is 38049241. The reversal of 38049240 is 4294083.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 38049198 and 38049207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38049241) 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, 158419 + ... + 158658.

Almost surely, 2^38049240 is an apocalyptic number.

38049240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38049240 is an abundant number, since it is smaller than the sum of its proper divisors (76098840).

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

38049240 is a wasteful number, since it uses less digits than its factorization.

38049240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317091 (or 317087 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 38049240 is about 6168.4066013842. The cubic root of 38049240 is about 336.3426917476.

The spelling of 38049240 in words is "thirty-eight million, forty-nine thousand, two hundred forty".