1630426274 has 8 divisors (see below), whose sum is σ = 2445846300. Its totient is φ = 815144176.

The previous prime is 1630426267. The next prime is 1630426279. The reversal of 1630426274 is 4726240361.

It can be written as a sum of positive squares in 2 ways, for example, as 1600560049 + 29866225 = 40007^2 + 5465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1630426279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3392 + ... + 57204.

Almost surely, 2^1630426274 is an apocalyptic number.

1630426274 is a deficient number, since it is larger than the sum of its proper divisors (815420026).

1630426274 is a wasteful number, since it uses less digits than its factorization.

1630426274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68964.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 1630426274 is about 40378.5372939635. The cubic root of 1630426274 is about 1176.9745039397.

The spelling of 1630426274 in words is "one billion, six hundred thirty million, four hundred twenty-six thousand, two hundred seventy-four".