7254780920 has 32 divisors (see below), whose sum is σ = 16764429600. Its totient is φ = 2823481728.

The previous prime is 7254780919. The next prime is 7254780943. The reversal of 7254780920 is 290874527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449460 + ... + 2452419.

It is an arithmetic number, because the mean of its divisors is an integer number (523888425).

Almost surely, 2^7254780920 is an apocalyptic number.

It is an amenable number.

7254780920 is an abundant number, since it is smaller than the sum of its proper divisors (9509648680).

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

7254780920 is a wasteful number, since it uses less digits than its factorization.

7254780920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901927 (or 4901923 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 7254780920 is about 85175.0017317288. The cubic root of 7254780920 is about 1935.8636602015.

The spelling of 7254780920 in words is "seven billion, two hundred fifty-four million, seven hundred eighty thousand, nine hundred twenty".