38996638 has 16 divisors (see below), whose sum is σ = 61203456. Its totient is φ = 18600120.

The previous prime is 38996621. The next prime is 38996641. The reversal of 38996638 is 83669983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20383 + ... + 22213.

It is an arithmetic number, because the mean of its divisors is an integer number (3825216).

Almost surely, 2^38996638 is an apocalyptic number.

38996638 is a deficient number, since it is larger than the sum of its proper divisors (22206818).

38996638 is a wasteful number, since it uses less digits than its factorization.

38996638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319.

The product of its digits is 1679616, while the sum is 52.

The square root of 38996638 is about 6244.7288171705. The cubic root of 38996638 is about 339.1113993608. Note that the first 3 decimals are identical.

The spelling of 38996638 in words is "thirty-eight million, nine hundred ninety-six thousand, six hundred thirty-eight".