747144342 has 96 divisors (see below), whose sum is σ = 1940777280. Its totient is φ = 203212800.

The previous prime is 747144341. The next prime is 747144347. The reversal of 747144342 is 243441747.

It is a happy number.

It is a super-2 number, since 2×747144342² = 1116449335565225928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 747144297 and 747144306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747144341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265342 + ... + 268142.

It is an arithmetic number, because the mean of its divisors is an integer number (20216430).

Almost surely, 2^747144342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747144342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970388640).

747144342 is an abundant number, since it is smaller than the sum of its proper divisors (1193632938).

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

747144342 is a wasteful number, since it uses less digits than its factorization.

747144342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2915 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 747144342 is about 27333.9412086878. The cubic root of 747144342 is about 907.4057020157.

The spelling of 747144342 in words is "seven hundred forty-seven million, one hundred forty-four thousand, three hundred forty-two".