453742938 has 64 divisors (see below), whose sum is σ = 1103034240. Its totient is φ = 137116800.

The previous prime is 453742931. The next prime is 453742943. The reversal of 453742938 is 839247354.

It is a junction number, because it is equal to n+sod(n) for n = 453742893 and 453742902.

It is not an unprimeable number, because it can be changed into a prime (453742931) 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, 273006 + ... + 274662.

It is an arithmetic number, because the mean of its divisors is an integer number (17234910).

Almost surely, 2^453742938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 453742938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551517120).

453742938 is an abundant number, since it is smaller than the sum of its proper divisors (649291302).

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

453742938 is a wasteful number, since it uses less digits than its factorization.

453742938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140 (or 2134 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 453742938 is about 21301.2426398086. The cubic root of 453742938 is about 768.4281974939.

The spelling of 453742938 in words is "four hundred fifty-three million, seven hundred forty-two thousand, nine hundred thirty-eight".