38379645 has 12 divisors (see below), whose sum is σ = 66524796. Its totient is φ = 20469120.

The previous prime is 38379641. The next prime is 38379647. The reversal of 38379645 is 54697383.

It can be written as a sum of positive squares in 2 ways, for example, as 23794884 + 14584761 = 4878^2 + 3819^2 .

It is not a de Polignac number, because 38379645 - 2² = 38379641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 852881 = 38379645 / (3 + 8 + 3 + 7 + 9 + 6 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 38379645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38379641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426396 + ... + 426485.

It is an arithmetic number, because the mean of its divisors is an integer number (5543733).

Almost surely, 2^38379645 is an apocalyptic number.

It is an amenable number.

38379645 is a deficient number, since it is larger than the sum of its proper divisors (28145151).

38379645 is a wasteful number, since it uses less digits than its factorization.

38379645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852892 (or 852889 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 38379645 is about 6195.1307492256. The cubic root of 38379645 is about 337.3134442239.

The spelling of 38379645 in words is "thirty-eight million, three hundred seventy-nine thousand, six hundred forty-five".