38421456 has 20 divisors (see below), whose sum is σ = 99255552. Its totient is φ = 12807136.

The previous prime is 38421443. The next prime is 38421463. The reversal of 38421456 is 65412483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400176 + ... + 400271.

Almost surely, 2^38421456 is an apocalyptic number.

It is an amenable number.

38421456 is an abundant number, since it is smaller than the sum of its proper divisors (60834096).

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

38421456 is a wasteful number, since it uses less digits than its factorization.

38421456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800458 (or 800452 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 38421456 is about 6198.5043357249. The cubic root of 38421456 is about 337.4358901547.

The spelling of 38421456 in words is "thirty-eight million, four hundred twenty-one thousand, four hundred fifty-six".