38570420 has 24 divisors (see below), whose sum is σ = 92569344. Its totient is φ = 13224096.

The previous prime is 38570387. The next prime is 38570423. The reversal of 38570420 is 2407583.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38570423) 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, 137612 + ... + 137891.

It is an arithmetic number, because the mean of its divisors is an integer number (3857056).

Almost surely, 2^38570420 is an apocalyptic number.

It is an amenable number.

38570420 is an abundant number, since it is smaller than the sum of its proper divisors (53998924).

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

38570420 is a wasteful number, since it uses less digits than its factorization.

38570420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275519 (or 275517 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 38570420 is about 6210.5088358362. The cubic root of 38570420 is about 337.8714191778.

The spelling of 38570420 in words is "thirty-eight million, five hundred seventy thousand, four hundred twenty".