38456420 has 12 divisors (see below), whose sum is σ = 80758524. Its totient is φ = 15382560.

The previous prime is 38456419. The next prime is 38456423. The reversal of 38456420 is 2465483.

It can be written as a sum of positive squares in 2 ways, for example, as 3976036 + 34480384 = 1994^2 + 5872^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38456423) 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 3 ways as a sum of consecutive naturals, for example, 961391 + ... + 961430.

It is an arithmetic number, because the mean of its divisors is an integer number (6729877).

Almost surely, 2^38456420 is an apocalyptic number.

It is an amenable number.

38456420 is an abundant number, since it is smaller than the sum of its proper divisors (42302104).

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

38456420 is a wasteful number, since it uses less digits than its factorization.

38456420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922830 (or 1922828 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 38456420 is about 6201.3240521682. The cubic root of 38456420 is about 337.5382160658.

The spelling of 38456420 in words is "thirty-eight million, four hundred fifty-six thousand, four hundred twenty".