38099090 has 8 divisors (see below), whose sum is σ = 68578380. Its totient is φ = 15239632.

The previous prime is 38099071. The next prime is 38099099. The reversal of 38099090 is 9099083.

It can be written as a sum of positive squares in 2 ways, for example, as 31933801 + 6165289 = 5651^2 + 2483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38099099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1904945 + ... + 1904964.

Almost surely, 2^38099090 is an apocalyptic number.

38099090 is a deficient number, since it is larger than the sum of its proper divisors (30479290).

38099090 is a wasteful number, since it uses less digits than its factorization.

38099090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3809916.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 38099090 is about 6172.4460305458. The cubic root of 38099090 is about 336.4895134822.

The spelling of 38099090 in words is "thirty-eight million, ninety-nine thousand, ninety".