380642239 has 4 divisors (see below), whose sum is σ = 381882424. Its totient is φ = 379402056.

The previous prime is 380642201. The next prime is 380642243. The reversal of 380642239 is 932246083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932246083 = 547 ⋅1704289.

It is a cyclic number.

It is not a de Polignac number, because 380642239 - 2¹¹ = 380640191 is a prime.

It is a super-2 number, since 2×380642239² = 289777028221866242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380642198 and 380642207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380643239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619632 + ... + 620245.

It is an arithmetic number, because the mean of its divisors is an integer number (95470606).

Almost surely, 2^380642239 is an apocalyptic number.

380642239 is a deficient number, since it is larger than the sum of its proper divisors (1240185).

380642239 is a wasteful number, since it uses less digits than its factorization.

380642239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240184.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 380642239 is about 19510.0548179650. The cubic root of 380642239 is about 724.7234705998.

The spelling of 380642239 in words is "three hundred eighty million, six hundred forty-two thousand, two hundred thirty-nine".