630154980 has 576 divisors, whose sum is σ = 2606542848. Its totient is φ = 119439360.

The previous prime is 630154937. The next prime is 630155023. The reversal of 630154980 is 89451036.

630154980 is a `hidden beast` number, since 6 + 30 + 1 + 549 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (630154937) and next prime (630155023).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8632224 + ... + 8632296.

It is an arithmetic number, because the mean of its divisors is an integer number (4525248).

Almost surely, 2^630154980 is an apocalyptic number.

630154980 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 630154980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1303271424).

630154980 is an abundant number, since it is smaller than the sum of its proper divisors (1976387868).

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

630154980 is a wasteful number, since it uses less digits than its factorization.

630154980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 630154980 is about 25102.8878816761. The cubic root of 630154980 is about 857.3321779427.

The spelling of 630154980 in words is "six hundred thirty million, one hundred fifty-four thousand, nine hundred eighty".