1630428341 has 4 divisors (see below), whose sum is σ = 1633558284. Its totient is φ = 1627298400.

The previous prime is 1630428311. The next prime is 1630428391. The reversal of 1630428341 is 1438240361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 408646225 + 1221782116 = 20215^2 + 34954^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630428341 - 2¹⁴ = 1630411957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1630428298 and 1630428307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630428311) 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, 1564190 + ... + 1565231.

It is an arithmetic number, because the mean of its divisors is an integer number (408389571).

Almost surely, 2^1630428341 is an apocalyptic number.

It is an amenable number.

1630428341 is a deficient number, since it is larger than the sum of its proper divisors (3129943).

1630428341 is an equidigital number, since it uses as much as digits as its factorization.

1630428341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129942.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1630428341 is about 40378.5628892362. The cubic root of 1630428341 is about 1176.9750013158.

The spelling of 1630428341 in words is "one billion, six hundred thirty million, four hundred twenty-eight thousand, three hundred forty-one".