437499945 has 24 divisors (see below), whose sum is σ = 784485000. Its totient is φ = 225286656.

The previous prime is 437499943. The next prime is 437499989. The reversal of 437499945 is 549994734.

It can be written as a sum of positive squares in 4 ways, for example, as 143137296 + 294362649 = 11964^2 + 17157^2 .

It is not a de Polignac number, because 437499945 - 2¹ = 437499943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 437499891 and 437499900.

It is not an unprimeable number, because it can be changed into a prime (437499943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166320 + ... + 168929.

It is an arithmetic number, because the mean of its divisors is an integer number (32686875).

Almost surely, 2^437499945 is an apocalyptic number.

437499945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

437499945 is a deficient number, since it is larger than the sum of its proper divisors (346985055).

437499945 is a wasteful number, since it uses less digits than its factorization.

437499945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335289 (or 335286 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 437499945 is about 20916.4993486004. The cubic root of 437499945 is about 759.1472111570.

The spelling of 437499945 in words is "four hundred thirty-seven million, four hundred ninety-nine thousand, nine hundred forty-five".