38949278 has 16 divisors (see below), whose sum is σ = 65117520. Its totient is φ = 17364096.

The previous prime is 38949277. The next prime is 38949289. The reversal of 38949278 is 87294983.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38949277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29501 + ... + 30792.

It is an arithmetic number, because the mean of its divisors is an integer number (4069845).

Almost surely, 2^38949278 is an apocalyptic number.

38949278 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

38949278 is a deficient number, since it is larger than the sum of its proper divisors (26168242).

38949278 is a wasteful number, since it uses less digits than its factorization.

38949278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60331.

The product of its digits is 870912, while the sum is 50.

The square root of 38949278 is about 6240.9356670294. The cubic root of 38949278 is about 338.9740642584.

The spelling of 38949278 in words is "thirty-eight million, nine hundred forty-nine thousand, two hundred seventy-eight".