1630794037 has 8 divisors (see below), whose sum is σ = 1727087832. Its totient is φ = 1534540800.

The previous prime is 1630794013. The next prime is 1630794181. The reversal of 1630794037 is 7304970361.

It can be written as a sum of positive squares in 4 ways, for example, as 422466916 + 1208327121 = 20554^2 + 34761^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1630794037 - 2¹¹ = 1630791989 is a prime.

It is a super-2 number, since 2×1630794037² = 5318978382229514738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630794007) 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, 121837 + ... + 134557.

It is an arithmetic number, because the mean of its divisors is an integer number (215885979).

Almost surely, 2^1630794037 is an apocalyptic number.

1630794037 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1630794037 is a deficient number, since it is larger than the sum of its proper divisors (96293795).

1630794037 is a wasteful number, since it uses less digits than its factorization.

1630794037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20279.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 1630794037 is about 40383.0909787748. The cubic root of 1630794037 is about 1177.0629910510.

The spelling of 1630794037 in words is "one billion, six hundred thirty million, seven hundred ninety-four thousand, thirty-seven".