38191995 has 36 divisors (see below), whose sum is σ = 69896736. Its totient is φ = 19288800.

The previous prime is 38191991. The next prime is 38192003. The reversal of 38191995 is 59919183.

It is not a de Polignac number, because 38191995 - 2² = 38191991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38191995.

It is not an unprimeable number, because it can be changed into a prime (38191991) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15070 + ... + 17420.

It is an arithmetic number, because the mean of its divisors is an integer number (1941576).

Almost surely, 2^38191995 is an apocalyptic number.

38191995 is a deficient number, since it is larger than the sum of its proper divisors (31704741).

38191995 is a wasteful number, since it uses less digits than its factorization.

38191995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400 (or 2378 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 38191995 is about 6179.9672329228. The cubic root of 38191995 is about 336.7628024425.

The spelling of 38191995 in words is "thirty-eight million, one hundred ninety-one thousand, nine hundred ninety-five".