1630756064 has 72 divisors (see below), whose sum is σ = 3746418480. Its totient is φ = 696708096.

The previous prime is 1630756027. The next prime is 1630756091. The reversal of 1630756064 is 4606570361.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561464 + ... + 564360.

It is an arithmetic number, because the mean of its divisors is an integer number (52033590).

Almost surely, 2^1630756064 is an apocalyptic number.

1630756064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630756064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1873209240).

1630756064 is an abundant number, since it is smaller than the sum of its proper divisors (2115662416).

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

1630756064 is a wasteful number, since it uses less digits than its factorization.

1630756064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280 (or 3265 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 1630756064 is about 40382.6208163859. The cubic root of 1630756064 is about 1177.0538550190.

The spelling of 1630756064 in words is "one billion, six hundred thirty million, seven hundred fifty-six thousand, sixty-four".