445400454 has 8 divisors (see below), whose sum is σ = 890800920. Its totient is φ = 148466816.

The previous prime is 445400401. The next prime is 445400471. The reversal of 445400454 is 454004544.

It is a happy number.

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

445400454 is an admirable number.

It is a super-2 number, since 2×445400454² = 396763128846812232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37116699 + ... + 37116710.

It is an arithmetic number, because the mean of its divisors is an integer number (111350115).

Almost surely, 2^445400454 is an apocalyptic number.

445400454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

445400454 is a wasteful number, since it uses less digits than its factorization.

445400454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74233414.

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 445400454 is about 21104.5126454036. The cubic root of 445400454 is about 763.6896153830.

Adding to 445400454 its reverse (454004544), we get a palindrome (899404998).

The spelling of 445400454 in words is "four hundred forty-five million, four hundred thousand, four hundred fifty-four".