1630020344 has 8 divisors (see below), whose sum is σ = 3056288160. Its totient is φ = 815010168.

The previous prime is 1630020341. The next prime is 1630020349. The reversal of 1630020344 is 4430200361.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630020341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101876264 + ... + 101876279.

It is an arithmetic number, because the mean of its divisors is an integer number (382036020).

Almost surely, 2^1630020344 is an apocalyptic number.

It is an amenable number.

1630020344 is a deficient number, since it is larger than the sum of its proper divisors (1426267816).

1630020344 is a wasteful number, since it uses less digits than its factorization.

1630020344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203752549 (or 203752545 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1630020344 is about 40373.5104245346. The cubic root of 1630020344 is about 1176.8768180515.

The spelling of 1630020344 in words is "one billion, six hundred thirty million, twenty thousand, three hundred forty-four".