38761449 has 4 divisors (see below), whose sum is σ = 51681936. Its totient is φ = 25840964.

The previous prime is 38761433. The next prime is 38761451. The reversal of 38761449 is 94416783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94416783 = 3 ⋅31472261.

It is a cyclic number.

It is not a de Polignac number, because 38761449 - 2⁴ = 38761433 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38761449.

It is not an unprimeable number, because it can be changed into a prime (38761409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6460239 + ... + 6460244.

It is an arithmetic number, because the mean of its divisors is an integer number (12920484).

Almost surely, 2^38761449 is an apocalyptic number.

It is an amenable number.

38761449 is a deficient number, since it is larger than the sum of its proper divisors (12920487).

38761449 is a wasteful number, since it uses less digits than its factorization.

38761449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12920486.

The product of its digits is 145152, while the sum is 42.

The square root of 38761449 is about 6225.8693368878. The cubic root of 38761449 is about 338.4282964982.

The spelling of 38761449 in words is "thirty-eight million, seven hundred sixty-one thousand, four hundred forty-nine".