38428446 has 48 divisors (see below), whose sum is σ = 93308544. Its totient is φ = 10500336.

The previous prime is 38428421. The next prime is 38428477. The reversal of 38428446 is 64482483.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3921 + ... + 9603.

It is an arithmetic number, because the mean of its divisors is an integer number (1943928).

Almost surely, 2^38428446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38428446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46654272).

38428446 is an abundant number, since it is smaller than the sum of its proper divisors (54880098).

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

38428446 is a wasteful number, since it uses less digits than its factorization.

38428446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725 (or 5718 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

The square root of 38428446 is about 6199.0681557795. The cubic root of 38428446 is about 337.4563521057.

The spelling of 38428446 in words is "thirty-eight million, four hundred twenty-eight thousand, four hundred forty-six".