1630426275 has 72 divisors (see below), whose sum is σ = 3021390944. Its totient is φ = 839808000.

The previous prime is 1630426267. The next prime is 1630426279. The reversal of 1630426275 is 5726240361.

1630426275 is a `hidden beast` number, since 163 + 0 + 426 + 2 + 75 = 666.

It is not a de Polignac number, because 1630426275 - 2³ = 1630426267 is a prime.

It is a Duffinian number.

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

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1256427 + ... + 1257723.

Almost surely, 2^1630426275 is an apocalyptic number.

1630426275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1630426275 is a deficient number, since it is larger than the sum of its proper divisors (1390964669).

1630426275 is a wasteful number, since it uses less digits than its factorization.

1630426275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1630426275 is about 40378.5373063463. The cubic root of 1630426275 is about 1176.9745041803.

The spelling of 1630426275 in words is "one billion, six hundred thirty million, four hundred twenty-six thousand, two hundred seventy-five".