38290245 has 16 divisors (see below), whose sum is σ = 70016640. Its totient is φ = 17504064.

The previous prime is 38290243. The next prime is 38290247. The reversal of 38290245 is 54209283.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38290243) and next prime (38290247).

It is not a de Polignac number, because 38290245 - 2¹ = 38290243 is a prime.

It is a super-2 number, since 2×38290245² = 2932285724320050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38290243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182230 + ... + 182439.

It is an arithmetic number, because the mean of its divisors is an integer number (4376040).

Almost surely, 2^38290245 is an apocalyptic number.

38290245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38290245 is a deficient number, since it is larger than the sum of its proper divisors (31726395).

38290245 is a wasteful number, since it uses less digits than its factorization.

38290245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364684.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 38290245 is about 6187.9111984578. The cubic root of 38290245 is about 337.0513324817.

The spelling of 38290245 in words is "thirty-eight million, two hundred ninety thousand, two hundred forty-five".