38670420 has 24 divisors (see below), whose sum is σ = 108277344. Its totient is φ = 10312096.

The previous prime is 38670419. The next prime is 38670431. The reversal of 38670420 is 2407683.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322194 + ... + 322313.

It is an arithmetic number, because the mean of its divisors is an integer number (4511556).

Almost surely, 2^38670420 is an apocalyptic number.

38670420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38670420 is an abundant number, since it is smaller than the sum of its proper divisors (69606924).

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

38670420 is a wasteful number, since it uses less digits than its factorization.

38670420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644519 (or 644517 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 38670420 is about 6218.5544944143. The cubic root of 38670420 is about 338.1631624738.

The spelling of 38670420 in words is "thirty-eight million, six hundred seventy thousand, four hundred twenty".