420437445 has 16 divisors (see below), whose sum is σ = 688345152. Its totient is φ = 219018240.

The previous prime is 420437431. The next prime is 420437461. The reversal of 420437445 is 544734024.

It is not a de Polignac number, because 420437445 - 2¹³ = 420429253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325276 + ... + 326565.

It is an arithmetic number, because the mean of its divisors is an integer number (43021572).

Almost surely, 2^420437445 is an apocalyptic number.

It is an amenable number.

420437445 is a deficient number, since it is larger than the sum of its proper divisors (267907707).

420437445 is a wasteful number, since it uses less digits than its factorization.

420437445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651892.

The product of its (nonzero) digits is 53760, while the sum is 33.

The square root of 420437445 is about 20504.5713195863. The cubic root of 420437445 is about 749.1471461101.

The spelling of 420437445 in words is "four hundred twenty million, four hundred thirty-seven thousand, four hundred forty-five".