38206749 has 16 divisors (see below), whose sum is σ = 60751872. Its totient is φ = 20882928.

The previous prime is 38206741. The next prime is 38206759. The reversal of 38206749 is 94760283.

It is not a de Polignac number, because 38206749 - 2³ = 38206741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38206741) 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, 39069 + ... + 40034.

It is an arithmetic number, because the mean of its divisors is an integer number (3796992).

Almost surely, 2^38206749 is an apocalyptic number.

It is an amenable number.

38206749 is a deficient number, since it is larger than the sum of its proper divisors (22545123).

38206749 is a wasteful number, since it uses less digits than its factorization.

38206749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79136.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 38206749 is about 6181.1608133101. The cubic root of 38206749 is about 336.8061619538.

The spelling of 38206749 in words is "thirty-eight million, two hundred six thousand, seven hundred forty-nine".