752420540 has 12 divisors (see below), whose sum is σ = 1580083176. Its totient is φ = 300968208.

The previous prime is 752420533. The next prime is 752420549. The reversal of 752420540 is 45024257.

It is a happy number.

752420540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×752420540² = 1132273338027783200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (752420549) 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, 18810494 + ... + 18810533.

It is an arithmetic number, because the mean of its divisors is an integer number (131673598).

Almost surely, 2^752420540 is an apocalyptic number.

It is an amenable number.

752420540 is an abundant number, since it is smaller than the sum of its proper divisors (827662636).

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

752420540 is a wasteful number, since it uses less digits than its factorization.

752420540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37621036 (or 37621034 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 752420540 is about 27430.2850878368. The cubic root of 752420540 is about 909.5366719166.

Adding to 752420540 its reverse (45024257), we get a palindrome (797444797).

The spelling of 752420540 in words is "seven hundred fifty-two million, four hundred twenty thousand, five hundred forty".