1630625434 has 8 divisors (see below), whose sum is σ = 2552283360. Its totient is φ = 779864316.

The previous prime is 1630625419. The next prime is 1630625443. The reversal of 1630625434 is 4345260361.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1630625434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17724144 + ... + 17724235.

It is an arithmetic number, because the mean of its divisors is an integer number (319035420).

Almost surely, 2^1630625434 is an apocalyptic number.

1630625434 is a deficient number, since it is larger than the sum of its proper divisors (921657926).

1630625434 is a wasteful number, since it uses less digits than its factorization.

1630625434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35448404.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 1630625434 is about 40381.0033803025. The cubic root of 1630625434 is about 1177.0224252925.

Adding to 1630625434 its reverse (4345260361), we get a palindrome (5975885795).

The spelling of 1630625434 in words is "one billion, six hundred thirty million, six hundred twenty-five thousand, four hundred thirty-four".