39280381 has 8 divisors (see below), whose sum is σ = 44968064. Its totient is φ = 33611760.

The previous prime is 39280369. The next prime is 39280399. The reversal of 39280381 is 18308293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39280381 - 2⁹ = 39279869 is a prime.

It is a super-2 number, since 2×39280381² = 3085896663010322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39280321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30 + ... + 8863.

It is an arithmetic number, because the mean of its divisors is an integer number (5621008).

Almost surely, 2^39280381 is an apocalyptic number.

It is an amenable number.

39280381 is a deficient number, since it is larger than the sum of its proper divisors (5687683).

39280381 is an equidigital number, since it uses as much as digits as its factorization.

39280381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9531.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 39280381 is about 6267.4062418197. The cubic root of 39280381 is about 339.9318808169.

The spelling of 39280381 in words is "thirty-nine million, two hundred eighty thousand, three hundred eighty-one".