1630994410 has 16 divisors (see below), whose sum is σ = 3015136296. Its totient is φ = 634765248.

The previous prime is 1630994389. The next prime is 1630994411. The reversal of 1630994410 is 144990361.

It can be written as a sum of positive squares in 4 ways, for example, as 1084977721 + 546016689 = 32939^2 + 23367^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 1630994410.

It is not an unprimeable number, because it can be changed into a prime (1630994411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203677 + ... + 2204416.

Almost surely, 2^1630994410 is an apocalyptic number.

1630994410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1630994410 is a deficient number, since it is larger than the sum of its proper divisors (1384141886).

1630994410 is a wasteful number, since it uses less digits than its factorization.

1630994410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408137.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1630994410 is about 40385.5718047919. The cubic root of 1630994410 is about 1177.1111970126. Note that the first 4 decimals are identical.

The spelling of 1630994410 in words is "one billion, six hundred thirty million, nine hundred ninety-four thousand, four hundred ten".