38995215 has 16 divisors (see below), whose sum is σ = 71305728. Its totient is φ = 17826336.

The previous prime is 38995207. The next prime is 38995217. The reversal of 38995215 is 51259983.

It is not a de Polignac number, because 38995215 - 2³ = 38995207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38995217) 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, 185587 + ... + 185796.

It is an arithmetic number, because the mean of its divisors is an integer number (4456608).

Almost surely, 2^38995215 is an apocalyptic number.

38995215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38995215 is a deficient number, since it is larger than the sum of its proper divisors (32310513).

38995215 is a wasteful number, since it uses less digits than its factorization.

38995215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371398.

The product of its digits is 97200, while the sum is 42.

The square root of 38995215 is about 6244.6148800386. The cubic root of 38995215 is about 339.1072745489.

The spelling of 38995215 in words is "thirty-eight million, nine hundred ninety-five thousand, two hundred fifteen".