38403456 has 192 divisors, whose sum is σ = 128605680. Its totient is φ = 10063872.

The previous prime is 38403437. The next prime is 38403457. The reversal of 38403456 is 65430483.

It is a tau number, because it is divible by the number of its divisors (192).

38403456 is a modest number, since divided by 3456 gives 384 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38403457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244530 + ... + 244686.

Almost surely, 2^38403456 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 38403456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64302840).

38403456 is an abundant number, since it is smaller than the sum of its proper divisors (90202224).

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

38403456 is a wasteful number, since it uses less digits than its factorization.

38403456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 38403456 is about 6197.0522024588. The cubic root of 38403456 is about 337.3831870091.

The spelling of 38403456 in words is "thirty-eight million, four hundred three thousand, four hundred fifty-six".