420892844 has 6 divisors (see below), whose sum is σ = 736562484. Its totient is φ = 210446420.

The previous prime is 420892841. The next prime is 420892873. The reversal of 420892844 is 448298024.

It is a super-2 number, since 2×420892844² = 354301572260816672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420892841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52611602 + ... + 52611609.

It is an arithmetic number, because the mean of its divisors is an integer number (122760414).

Almost surely, 2^420892844 is an apocalyptic number.

It is an amenable number.

420892844 is a deficient number, since it is larger than the sum of its proper divisors (315669640).

420892844 is a wasteful number, since it uses less digits than its factorization.

420892844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105223215 (or 105223213 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 420892844 is about 20515.6731305604. The cubic root of 420892844 is about 749.4175293840.

The spelling of 420892844 in words is "four hundred twenty million, eight hundred ninety-two thousand, eight hundred forty-four".