38013287 has 16 divisors (see below), whose sum is σ = 43092000. Its totient is φ = 33285504.

The previous prime is 38013211. The next prime is 38013289. The reversal of 38013287 is 78231083.

It is not a de Polignac number, because 38013287 - 2¹⁸ = 37751143 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 (38013289) 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, 21389 + ... + 23097.

It is an arithmetic number, because the mean of its divisors is an integer number (2693250).

Almost surely, 2^38013287 is an apocalyptic number.

38013287 is a deficient number, since it is larger than the sum of its proper divisors (5078713).

38013287 is a wasteful number, since it uses less digits than its factorization.

38013287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 38013287 is about 6165.4916267886. The cubic root of 38013287 is about 336.2367208218.

The spelling of 38013287 in words is "thirty-eight million, thirteen thousand, two hundred eighty-seven".