445354431 has 8 divisors (see below), whose sum is σ = 597362304. Its totient is φ = 295124760.

The previous prime is 445354373. The next prime is 445354453. The reversal of 445354431 is 134453544.

It is a happy number.

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

It is not a de Polignac number, because 445354431 - 2⁶ = 445354367 is a prime.

It is a super-2 number, since 2×445354431² = 396681138422667522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445354392 and 445354401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445350431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443965 + ... + 444966.

It is an arithmetic number, because the mean of its divisors is an integer number (74670288).

Almost surely, 2^445354431 is an apocalyptic number.

445354431 is a deficient number, since it is larger than the sum of its proper divisors (152007873).

445354431 is a wasteful number, since it uses less digits than its factorization.

445354431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889101.

The product of its digits is 57600, while the sum is 33.

The square root of 445354431 is about 21103.4222580130. The cubic root of 445354431 is about 763.6633105918.

The spelling of 445354431 in words is "four hundred forty-five million, three hundred fifty-four thousand, four hundred thirty-one".