38416021 has 16 divisors (see below), whose sum is σ = 44974080. Its totient is φ = 32134320.

The previous prime is 38415989. The next prime is 38416051. The reversal of 38416021 is 12061483.

It is a cyclic number.

It is not a de Polignac number, because 38416021 - 2⁵ = 38415989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38416051) 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, 78640 + ... + 79126.

It is an arithmetic number, because the mean of its divisors is an integer number (2810880).

Almost surely, 2^38416021 is an apocalyptic number.

It is an amenable number.

38416021 is a deficient number, since it is larger than the sum of its proper divisors (6558059).

38416021 is a wasteful number, since it uses less digits than its factorization.

38416021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 38416021 is about 6198.0659080071. The cubic root of 38416021 is about 337.4199784677.

The spelling of 38416021 in words is "thirty-eight million, four hundred sixteen thousand, twenty-one".