620265240 has 192 divisors, whose sum is σ = 2327607360. Its totient is φ = 140313600.

The previous prime is 620265227. The next prime is 620265259. The reversal of 620265240 is 42562026.

620265240 is a `hidden beast` number, since 6 + 2 + 0 + 2 + 652 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253302 + ... + 255738.

It is an arithmetic number, because the mean of its divisors is an integer number (12122955).

Almost surely, 2^620265240 is an apocalyptic number.

620265240 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 620265240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163803680).

620265240 is an abundant number, since it is smaller than the sum of its proper divisors (1707342120).

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

620265240 is a wasteful number, since it uses less digits than its factorization.

620265240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 620265240 is about 24905.1247738292. The cubic root of 620265240 is about 852.8234781167.

The spelling of 620265240 in words is "six hundred twenty million, two hundred sixty-five thousand, two hundred forty".