453378642 has 32 divisors (see below), whose sum is σ = 927381312. Its totient is φ = 147710784.

The previous prime is 453378637. The next prime is 453378643. The reversal of 453378642 is 246873354.

It is a junction number, because it is equal to n+sod(n) for n = 453378594 and 453378603.

It is not an unprimeable number, because it can be changed into a prime (453378643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85513 + ... + 90659.

It is an arithmetic number, because the mean of its divisors is an integer number (28980666).

Almost surely, 2^453378642 is an apocalyptic number.

453378642 is an abundant number, since it is smaller than the sum of its proper divisors (474002670).

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

453378642 is a wasteful number, since it uses less digits than its factorization.

453378642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482.

The product of its digits is 483840, while the sum is 42.

The square root of 453378642 is about 21292.6898723482. The cubic root of 453378642 is about 768.2224934519. Note that the first 3 decimals are identical.

The spelling of 453378642 in words is "four hundred fifty-three million, three hundred seventy-eight thousand, six hundred forty-two".