437229945 has 24 divisors (see below), whose sum is σ = 776353032. Its totient is φ = 227500800.

The previous prime is 437229941. The next prime is 437229959. The reversal of 437229945 is 549922734.

It can be written as a sum of positive squares in 4 ways, for example, as 18249984 + 418979961 = 4272^2 + 20469^2 .

It is not a de Polignac number, because 437229945 - 2² = 437229941 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 437229945.

It is not an unprimeable number, because it can be changed into a prime (437229941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116646 + ... + 120335.

It is an arithmetic number, because the mean of its divisors is an integer number (32348043).

Almost surely, 2^437229945 is an apocalyptic number.

437229945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

437229945 is a deficient number, since it is larger than the sum of its proper divisors (339123087).

437229945 is a wasteful number, since it uses less digits than its factorization.

437229945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237033 (or 237030 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 437229945 is about 20910.0441176005. The cubic root of 437229945 is about 758.9910115742.

The spelling of 437229945 in words is "four hundred thirty-seven million, two hundred twenty-nine thousand, nine hundred forty-five".