380172431 has 4 divisors (see below), whose sum is σ = 380279664. Its totient is φ = 380065200.

The previous prime is 380172427. The next prime is 380172449. The reversal of 380172431 is 134271083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134271083 = 17 ⋅7898299.

It is a cyclic number.

It is not a de Polignac number, because 380172431 - 2² = 380172427 is a prime.

It is a super-2 number, since 2×380172431² = 289062154584899522, 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 = 380172394 and 380172403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380172421) 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, 48110 + ... + 55451.

It is an arithmetic number, because the mean of its divisors is an integer number (95069916).

Almost surely, 2^380172431 is an apocalyptic number.

380172431 is a deficient number, since it is larger than the sum of its proper divisors (107233).

380172431 is a wasteful number, since it uses less digits than its factorization.

380172431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107232.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 380172431 is about 19498.0109498379. The cubic root of 380172431 is about 724.4251843307.

The spelling of 380172431 in words is "three hundred eighty million, one hundred seventy-two thousand, four hundred thirty-one".