38937261 has 16 divisors (see below), whose sum is σ = 57074688. Its totient is φ = 23415600.

The previous prime is 38937253. The next prime is 38937287. The reversal of 38937261 is 16273983.

It is not a de Polignac number, because 38937261 - 2³ = 38937253 is a prime.

It is a super-2 number, since 2×38937261² = 3032220588364242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38937221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181 + ... + 8826.

It is an arithmetic number, because the mean of its divisors is an integer number (3567168).

Almost surely, 2^38937261 is an apocalyptic number.

It is an amenable number.

38937261 is a deficient number, since it is larger than the sum of its proper divisors (18137427).

38937261 is a wasteful number, since it uses less digits than its factorization.

38937261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9152.

The product of its digits is 54432, while the sum is 39.

The square root of 38937261 is about 6239.9728364793. The cubic root of 38937261 is about 338.9391995100.

Subtracting from 38937261 its reverse (16273983), we obtain a triangular number (22663278 = T₆₇₃₂).

The spelling of 38937261 in words is "thirty-eight million, nine hundred thirty-seven thousand, two hundred sixty-one".