38946280 has 16 divisors (see below), whose sum is σ = 87629220. Its totient is φ = 15578496.

The previous prime is 38946263. The next prime is 38946287. The reversal of 38946280 is 8264983.

It can be written as a sum of positive squares in 2 ways, for example, as 38365636 + 580644 = 6194^2 + 762^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 973657 = 38946280 / (3 + 8 + 9 + 4 + 6 + 2 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (38946287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486789 + ... + 486868.

Almost surely, 2^38946280 is an apocalyptic number.

It is an amenable number.

38946280 is an abundant number, since it is smaller than the sum of its proper divisors (48682940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38946280 is a wasteful number, since it uses less digits than its factorization.

38946280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973668 (or 973664 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 38946280 is about 6240.6954740638. The cubic root of 38946280 is about 338.9653668758.

The spelling of 38946280 in words is "thirty-eight million, nine hundred forty-six thousand, two hundred eighty".