421245577 has 8 divisors (see below), whose sum is σ = 435421440. Its totient is φ = 407106480.

The previous prime is 421245569. The next prime is 421245607. The reversal of 421245577 is 775542124.

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 421245577 - 2³ = 421245569 is a prime.

It is a super-2 number, since 2×421245577² = 354895672284125858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421245527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15174 + ... + 32752.

It is an arithmetic number, because the mean of its divisors is an integer number (54427680).

Almost surely, 2^421245577 is an apocalyptic number.

It is an amenable number.

421245577 is a deficient number, since it is larger than the sum of its proper divisors (14175863).

421245577 is a wasteful number, since it uses less digits than its factorization.

421245577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18383.

The product of its digits is 78400, while the sum is 37.

The square root of 421245577 is about 20524.2680015634. The cubic root of 421245577 is about 749.6268229419.

The spelling of 421245577 in words is "four hundred twenty-one million, two hundred forty-five thousand, five hundred seventy-seven".