38445456 has 80 divisors (see below), whose sum is σ = 117198848. Its totient is φ = 10627200.

The previous prime is 38445439. The next prime is 38445457. The reversal of 38445456 is 65454483.

It is not an unprimeable number, because it can be changed into a prime (38445457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8571 + ... + 12261.

Almost surely, 2^38445456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38445456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58599424).

38445456 is an abundant number, since it is smaller than the sum of its proper divisors (78753392).

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

38445456 is a wasteful number, since it uses less digits than its factorization.

38445456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740 (or 3734 counting only the distinct ones).

The product of its digits is 230400, while the sum is 39.

The square root of 38445456 is about 6200.4399843882. The cubic root of 38445456 is about 337.5061354166.

The spelling of 38445456 in words is "thirty-eight million, four hundred forty-five thousand, four hundred fifty-six".