38313645 has 32 divisors (see below), whose sum is σ = 63258624. Its totient is φ = 19790400.

The previous prime is 38313629. The next prime is 38313661. The reversal of 38313645 is 54631383.

38313645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38313629) and next prime (38313661).

It is not a de Polignac number, because 38313645 - 2⁴ = 38313629 is a prime.

It is a super-3 number, since 3×38313645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123040 + ... + 123350.

It is an arithmetic number, because the mean of its divisors is an integer number (1976832).

Almost surely, 2^38313645 is an apocalyptic number.

It is an amenable number.

38313645 is a deficient number, since it is larger than the sum of its proper divisors (24944979).

38313645 is a wasteful number, since it uses less digits than its factorization.

38313645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its digits is 25920, while the sum is 33.

The square root of 38313645 is about 6189.8016931078. The cubic root of 38313645 is about 337.1199782955.

It can be divided in two parts, 383 and 13645, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 38313645 in words is "thirty-eight million, three hundred thirteen thousand, six hundred forty-five".