972734238 has 64 divisors (see below), whose sum is σ = 2474634240. Its totient is φ = 277452000.

The previous prime is 972734233. The next prime is 972734249. The reversal of 972734238 is 832437279.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 972734193 and 972734202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972734233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263143 + ... + 266813.

It is an arithmetic number, because the mean of its divisors is an integer number (38666160).

Almost surely, 2^972734238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 972734238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1237317120).

972734238 is an abundant number, since it is smaller than the sum of its proper divisors (1501900002).

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

972734238 is a wasteful number, since it uses less digits than its factorization.

972734238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390 (or 4384 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 972734238 is about 31188.6876607529. The cubic root of 972734238 is about 990.8275358063.

The spelling of 972734238 in words is "nine hundred seventy-two million, seven hundred thirty-four thousand, two hundred thirty-eight".