752144340 has 96 divisors (see below), whose sum is σ = 2156595840. Its totient is φ = 195813376.

The previous prime is 752144339. The next prime is 752144369. The reversal of 752144340 is 43441257.

It is a super-2 number, since 2×752144340² = 1131442216388071200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 752144298 and 752144307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 442372 + ... + 444068.

It is an arithmetic number, because the mean of its divisors is an integer number (22464540).

Almost surely, 2^752144340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 752144340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078297920).

752144340 is an abundant number, since it is smaller than the sum of its proper divisors (1404451500).

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

752144340 is a wasteful number, since it uses less digits than its factorization.

752144340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 752144340 is about 27425.2500444390. The cubic root of 752144340 is about 909.4253667974.

Adding to 752144340 its reverse (43441257), we get a palindrome (795585597).

The spelling of 752144340 in words is "seven hundred fifty-two million, one hundred forty-four thousand, three hundred forty".