38162021 has 8 divisors (see below), whose sum is σ = 39443544. Its totient is φ = 36897280.

The previous prime is 38162011. The next prime is 38162053. The reversal of 38162021 is 12026183.

It can be written as a sum of positive squares in 4 ways, for example, as 829921 + 37332100 = 911^2 + 6110^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38162021 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 (38162011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515 + ... + 8751.

It is an arithmetic number, because the mean of its divisors is an integer number (4930443).

Almost surely, 2^38162021 is an apocalyptic number.

It is an amenable number.

38162021 is a deficient number, since it is larger than the sum of its proper divisors (1281523).

38162021 is a wasteful number, since it uses less digits than its factorization.

38162021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8391.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 38162021 is about 6177.5416631537. The cubic root of 38162021 is about 336.6746795248.

The spelling of 38162021 in words is "thirty-eight million, one hundred sixty-two thousand, twenty-one".