380503631 has 4 divisors (see below), whose sum is σ = 383994600. Its totient is φ = 377012664.

The previous prime is 380503561. The next prime is 380503699. The reversal of 380503631 is 136305083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136305083 = 1801 ⋅75683.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380503631 is a prime.

It is a super-2 number, since 2×380503631² = 289566026408368322, 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 = 380503594 and 380503603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380503531) 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, 1745321 + ... + 1745538.

It is an arithmetic number, because the mean of its divisors is an integer number (95998650).

Almost surely, 2^380503631 is an apocalyptic number.

380503631 is a deficient number, since it is larger than the sum of its proper divisors (3490969).

380503631 is a wasteful number, since it uses less digits than its factorization.

380503631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490968.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 380503631 is about 19506.5022748826. The cubic root of 380503631 is about 724.6354923918.

The spelling of 380503631 in words is "three hundred eighty million, five hundred three thousand, six hundred thirty-one".