1631628954 has 16 divisors (see below), whose sum is σ = 3625842240. Its totient is φ = 543876300.

The previous prime is 1631628931. The next prime is 1631628959. The reversal of 1631628954 is 4598261361.

1631628954 is a `hidden beast` number, since 1 + 6 + 316 + 289 + 54 = 666.

It is a super-2 number, since 2×1631628954² = 5324426087062268232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1631628959) 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 7 ways as a sum of consecutive naturals, for example, 15107622 + ... + 15107729.

It is an arithmetic number, because the mean of its divisors is an integer number (226615140).

Almost surely, 2^1631628954 is an apocalyptic number.

1631628954 is an abundant number, since it is smaller than the sum of its proper divisors (1994213286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1631628954 is a wasteful number, since it uses less digits than its factorization.

1631628954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30215362 (or 30215356 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1631628954 is about 40393.4271138263. The cubic root of 1631628954 is about 1177.2638302770.

The spelling of 1631628954 in words is "one billion, six hundred thirty-one million, six hundred twenty-eight thousand, nine hundred fifty-four".