420846145 has 8 divisors (see below), whose sum is σ = 506336256. Its totient is φ = 335796336.

The previous prime is 420846119. The next prime is 420846161. The reversal of 420846145 is 541648024.

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

It is a cyclic number.

It is not a de Polignac number, because 420846145 - 2¹⁷ = 420715073 is a prime.

It is a super-2 number, since 2×420846145² = 354222955522722050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420846145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107967 + ... + 111796.

It is an arithmetic number, because the mean of its divisors is an integer number (63292032).

Almost surely, 2^420846145 is an apocalyptic number.

It is an amenable number.

420846145 is a deficient number, since it is larger than the sum of its proper divisors (85490111).

420846145 is a wasteful number, since it uses less digits than its factorization.

420846145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220151.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 420846145 is about 20514.5349691383. The cubic root of 420846145 is about 749.3898118433.

The spelling of 420846145 in words is "four hundred twenty million, eight hundred forty-six thousand, one hundred forty-five".