38363645 has 8 divisors (see below), whose sum is σ = 48744504. Its totient is φ = 28885504.

The previous prime is 38363639. The next prime is 38363651. The reversal of 38363645 is 54636383.

It is an interprime number because it is at equal distance from previous prime (38363639) and next prime (38363651).

It can be written as a sum of positive squares in 4 ways, for example, as 8922169 + 29441476 = 2987^2 + 5426^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38363645 - 2⁶ = 38363581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38363599 and 38363608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225584 + ... + 225753.

It is an arithmetic number, because the mean of its divisors is an integer number (6093063).

Almost surely, 2^38363645 is an apocalyptic number.

It is an amenable number.

38363645 is a deficient number, since it is larger than the sum of its proper divisors (10380859).

38363645 is a wasteful number, since it uses less digits than its factorization.

38363645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451359.

The product of its digits is 155520, while the sum is 38.

The square root of 38363645 is about 6193.8392778631. The cubic root of 38363645 is about 337.2665637724.

The spelling of 38363645 in words is "thirty-eight million, three hundred sixty-three thousand, six hundred forty-five".