747136338 has 128 divisors (see below), whose sum is σ = 1746662400. Its totient is φ = 211341312.

The previous prime is 747136333. The next prime is 747136339. The reversal of 747136338 is 833631747.

It is a self number, because there is not a number n which added to its sum of digits gives 747136338.

It is not an unprimeable number, because it can be changed into a prime (747136331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6611770 + ... + 6611882.

It is an arithmetic number, because the mean of its divisors is an integer number (13645800).

Almost surely, 2^747136338 is an apocalyptic number.

747136338 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 747136338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873331200).

747136338 is an abundant number, since it is smaller than the sum of its proper divisors (999526062).

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

747136338 is a wasteful number, since it uses less digits than its factorization.

747136338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its digits is 254016, while the sum is 42.

The square root of 747136338 is about 27333.7947969176. The cubic root of 747136338 is about 907.4024617221.

The spelling of 747136338 in words is "seven hundred forty-seven million, one hundred thirty-six thousand, three hundred thirty-eight".