38278969 has 9 divisors (see below), whose sum is σ = 40164943. Its totient is φ = 36478552.

The previous prime is 38278963. The next prime is 38278973. The reversal of 38278969 is 96987283.

The square root of 38278969 is 6187.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2518569 + 35760400 = 1587^2 + 5980^2 .

It is not a de Polignac number, because 38278969 - 2¹¹ = 38276921 is a prime.

It is a super-2 number, since 2×38278969² = 2930558935405922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38278963) 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 8 ways as a sum of consecutive naturals, for example, 142167 + ... + 142435.

Almost surely, 2^38278969 is an apocalyptic number.

38278969 is the 6187-th square number.

38278969 is the 3094-th centered octagonal number.

It is an amenable number.

38278969 is a deficient number, since it is larger than the sum of its proper divisors (1885974).

38278969 is an frugal number, since it uses more digits than its factorization.

38278969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 292 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The cubic root of 38278969 is about 337.0182434277.

The spelling of 38278969 in words is "thirty-eight million, two hundred seventy-eight thousand, nine hundred sixty-nine".