38142538 has 24 divisors (see below), whose sum is σ = 69018912. Its totient is φ = 15484392.

The previous prime is 38142527. The next prime is 38142541. The reversal of 38142538 is 83524183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1281 + ... + 8827.

It is an arithmetic number, because the mean of its divisors is an integer number (2875788).

Almost surely, 2^38142538 is an apocalyptic number.

38142538 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

38142538 is a deficient number, since it is larger than the sum of its proper divisors (30876374).

38142538 is a wasteful number, since it uses less digits than its factorization.

38142538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594 (or 7575 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 38142538 is about 6175.9645400536. The cubic root of 38142538 is about 336.6173751753.

The spelling of 38142538 in words is "thirty-eight million, one hundred forty-two thousand, five hundred thirty-eight".