1630662270 has 144 divisors (see below), whose sum is σ = 4396087728. Its totient is φ = 386979840.

The previous prime is 1630662167. The next prime is 1630662277. The reversal of 1630662270 is 722660361.

1630662270 = 256² + 257² + ... + 1699².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630662277) 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, 3129610 + ... + 3130130.

It is an arithmetic number, because the mean of its divisors is an integer number (30528387).

Almost surely, 2^1630662270 is an apocalyptic number.

1630662270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630662270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2198043864).

1630662270 is an abundant number, since it is smaller than the sum of its proper divisors (2765425458).

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

1630662270 is a wasteful number, since it uses less digits than its factorization.

1630662270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 1630662270 is about 40381.4594832827. The cubic root of 1630662270 is about 1177.0312882459.

The spelling of 1630662270 in words is "one billion, six hundred thirty million, six hundred sixty-two thousand, two hundred seventy".