38393901 has 72 divisors (see below), whose sum is σ = 71746584. Its totient is φ = 19595520.

The previous prime is 38393899. The next prime is 38393933. The reversal of 38393901 is 10939383.

It can be written as a sum of positive squares in 4 ways, for example, as 275625 + 38118276 = 525^2 + 6174^2 .

It is not a de Polignac number, because 38393901 - 2¹ = 38393899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38343901) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 212031 + ... + 212211.

Almost surely, 2^38393901 is an apocalyptic number.

It is an amenable number.

38393901 is a deficient number, since it is larger than the sum of its proper divisors (33352683).

38393901 is a wasteful number, since it uses less digits than its factorization.

38393901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 38393901 is about 6196.2812234436. The cubic root of 38393901 is about 337.3552037311.

The spelling of 38393901 in words is "thirty-eight million, three hundred ninety-three thousand, nine hundred one".