38730445 has 16 divisors (see below), whose sum is σ = 51275952. Its totient is φ = 27901440.

The previous prime is 38730427. The next prime is 38730463. The reversal of 38730445 is 54403783.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38730427) and next prime (38730463).

It can be written as a sum of positive squares in 8 ways, for example, as 9278116 + 29452329 = 3046^2 + 5427^2 .

It is not a de Polignac number, because 38730445 - 2¹³ = 38722253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38730445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4602 + ... + 9931.

It is an arithmetic number, because the mean of its divisors is an integer number (3204747).

Almost surely, 2^38730445 is an apocalyptic number.

It is an amenable number.

38730445 is a deficient number, since it is larger than the sum of its proper divisors (12545507).

38730445 is a wasteful number, since it uses less digits than its factorization.

38730445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14592.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 38730445 is about 6223.3789053857. The cubic root of 38730445 is about 338.3380398988.

The spelling of 38730445 in words is "thirty-eight million, seven hundred thirty thousand, four hundred forty-five".