38906424 has 24 divisors (see below), whose sum is σ = 105371760. Its totient is φ = 12968784.

The previous prime is 38906423. The next prime is 38906437. The reversal of 38906424 is 42460983.

It is a happy number.

38906424 is a `hidden beast` number, since 3 + 8 + 9 + 0 + 642 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38906423) 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 5 ways as a sum of consecutive naturals, for example, 270112 + ... + 270255.

It is an arithmetic number, because the mean of its divisors is an integer number (4390490).

Almost surely, 2^38906424 is an apocalyptic number.

It is an amenable number.

38906424 is an abundant number, since it is smaller than the sum of its proper divisors (66465336).

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

38906424 is a wasteful number, since it uses less digits than its factorization.

38906424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540379 (or 540372 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 38906424 is about 6237.5014228455. The cubic root of 38906424 is about 338.8496997334.

The spelling of 38906424 in words is "thirty-eight million, nine hundred six thousand, four hundred twenty-four".