2520393428 has 12 divisors (see below), whose sum is σ = 5040786912. Its totient is φ = 1080168600.

The previous prime is 2520393427. The next prime is 2520393431. The reversal of 2520393428 is 8243930252.

2520393428 is an admirable number.

It is a super-3 number, since 3×2520393428³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2520393391 and 2520393400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520393427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45006998 + ... + 45007053.

It is an arithmetic number, because the mean of its divisors is an integer number (420065576).

Almost surely, 2^2520393428 is an apocalyptic number.

2520393428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2520393428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2520393428 is a wasteful number, since it uses less digits than its factorization.

2520393428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90014062 (or 90014060 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2520393428 is about 50203.5200757875. The cubic root of 2520393428 is about 1360.8892375043.

The spelling of 2520393428 in words is "two billion, five hundred twenty million, three hundred ninety-three thousand, four hundred twenty-eight".