630192381 has 36 divisors (see below), whose sum is σ = 1058454432. Its totient is φ = 332396064.

The previous prime is 630192349. The next prime is 630192389. The reversal of 630192381 is 183291036.

It is not a de Polignac number, because 630192381 - 2⁵ = 630192349 is a prime.

It is a super-2 number, since 2×630192381² = 794284874140898322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630192389) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12160 + ... + 37526.

It is an arithmetic number, because the mean of its divisors is an integer number (29401512).

Almost surely, 2^630192381 is an apocalyptic number.

It is an amenable number.

630192381 is a deficient number, since it is larger than the sum of its proper divisors (428262051).

630192381 is a wasteful number, since it uses less digits than its factorization.

630192381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25410 (or 25390 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 630192381 is about 25103.6328247527. The cubic root of 630192381 is about 857.3491390859.

The spelling of 630192381 in words is "six hundred thirty million, one hundred ninety-two thousand, three hundred eighty-one".