453684638 has 8 divisors (see below), whose sum is σ = 742393080. Its totient is φ = 206220280.

The previous prime is 453684631. The next prime is 453684643. The reversal of 453684638 is 836486354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 453684592 and 453684601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453684631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10310993 + ... + 10311036.

It is an arithmetic number, because the mean of its divisors is an integer number (92799135).

Almost surely, 2^453684638 is an apocalyptic number.

453684638 is a deficient number, since it is larger than the sum of its proper divisors (288708442).

453684638 is a wasteful number, since it uses less digits than its factorization.

453684638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20622042.

The product of its digits is 1658880, while the sum is 47.

The square root of 453684638 is about 21299.8741310835. The cubic root of 453684638 is about 768.3952851119.

The spelling of 453684638 in words is "four hundred fifty-three million, six hundred eighty-four thousand, six hundred thirty-eight".