38694245 has 4 divisors (see below), whose sum is σ = 46433100. Its totient is φ = 30955392.

The previous prime is 38694221. The next prime is 38694259. The reversal of 38694245 is 54249683.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11142244 + 27552001 = 3338^2 + 5249^2 .

It is a cyclic number.

It is not a de Polignac number, because 38694245 - 2⁶ = 38694181 is a prime.

It is a super-2 number, since 2×38694245² = 2994489192240050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3869420 + ... + 3869429.

It is an arithmetic number, because the mean of its divisors is an integer number (11608275).

Almost surely, 2^38694245 is an apocalyptic number.

It is an amenable number.

38694245 is a deficient number, since it is larger than the sum of its proper divisors (7738855).

38694245 is an equidigital number, since it uses as much as digits as its factorization.

38694245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7738854.

The product of its digits is 207360, while the sum is 41.

The square root of 38694245 is about 6220.4698375605. The cubic root of 38694245 is about 338.2325961073.

The spelling of 38694245 in words is "thirty-eight million, six hundred ninety-four thousand, two hundred forty-five".