7700420252 has 12 divisors (see below), whose sum is σ = 15400840560. Its totient is φ = 3300180096.

The previous prime is 7700420251. The next prime is 7700420269. The reversal of 7700420252 is 2520240077.

7700420252 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7700420251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137507477 + ... + 137507532.

It is an arithmetic number, because the mean of its divisors is an integer number (1283403380).

Almost surely, 2^7700420252 is an apocalyptic number.

It is an amenable number.

7700420252 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.

7700420252 is a wasteful number, since it uses less digits than its factorization.

7700420252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275015020 (or 275015018 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 7700420252 is about 87752.0384492577. The cubic root of 7700420252 is about 1974.7167463885.

The spelling of 7700420252 in words is "seven billion, seven hundred million, four hundred twenty thousand, two hundred fifty-two".