630427069440 has 1188 divisors, whose sum is σ = 2645540441856. Its totient is φ = 143721381888.

The previous prime is 630427069439. The next prime is 630427069457. The reversal of 630427069440 is 44960724036.

It is a happy number.

630427069440 is a `hidden beast` number, since 630 + 4 + 2 + 7 + 0 + 6 + 9 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1646023489 + ... + 1646023871.

Almost surely, 2^630427069440 is an apocalyptic number.

630427069440 is a gapful number since it is divisible by the number (60) 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 630427069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322770220928).

630427069440 is an abundant number, since it is smaller than the sum of its proper divisors (2015113372416).

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

630427069440 is an frugal number, since it uses more digits than its factorization.

630427069440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 630427069440 in words is "six hundred thirty billion, four hundred twenty-seven million, sixty-nine thousand, four hundred forty".