627730740 has 288 divisors, whose sum is σ = 2468094720. Its totient is φ = 125411328.

The previous prime is 627730739. The next prime is 627730751. The reversal of 627730740 is 47037726.

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

It is a junction number, because it is equal to n+sod(n) for n = 627730695 and 627730704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 310212 + ... + 312228.

Almost surely, 2^627730740 is an apocalyptic number.

627730740 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 627730740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1234047360).

627730740 is an abundant number, since it is smaller than the sum of its proper divisors (1840363980).

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

627730740 is a wasteful number, since it uses less digits than its factorization.

627730740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2066 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 627730740 is about 25054.5552744406. Note that the first 3 decimals coincide. The cubic root of 627730740 is about 856.2313641494.

The spelling of 627730740 in words is "six hundred twenty-seven million, seven hundred thirty thousand, seven hundred forty".