38991034 has 4 divisors (see below), whose sum is σ = 58486554. Its totient is φ = 19495516.

The previous prime is 38991031. The next prime is 38991037. The reversal of 38991034 is 43019983.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (38991031) and next prime (38991037).

It can be written as a sum of positive squares in only one way, i.e., 28590409 + 10400625 = 5347^2 + 3225^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38990984 and 38991002.

It is not an unprimeable number, because it can be changed into a prime (38991031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9747757 + ... + 9747760.

Almost surely, 2^38991034 is an apocalyptic number.

38991034 is a deficient number, since it is larger than the sum of its proper divisors (19495520).

38991034 is a wasteful number, since it uses less digits than its factorization.

38991034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19495519.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 38991034 is about 6244.2801026219. The cubic root of 38991034 is about 339.0951546158.

The spelling of 38991034 in words is "thirty-eight million, nine hundred ninety-one thousand, thirty-four".