742543632 has 80 divisors (see below), whose sum is σ = 2147808960. Its totient is φ = 245606400.

The previous prime is 742543601. The next prime is 742543649. The reversal of 742543632 is 236345247.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50032 + ... + 63152.

It is an arithmetic number, because the mean of its divisors is an integer number (26847612).

Almost surely, 2^742543632 is an apocalyptic number.

742543632 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742543632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1073904480).

742543632 is an abundant number, since it is smaller than the sum of its proper divisors (1405265328).

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

742543632 is a wasteful number, since it uses less digits than its factorization.

742543632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13269 (or 13257 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 742543632 is about 27249.6537959659. The cubic root of 742543632 is about 905.5393474198.

Adding to 742543632 its reverse (236345247), we get a palindrome (978888879).

The spelling of 742543632 in words is "seven hundred forty-two million, five hundred forty-three thousand, six hundred thirty-two".