420811092 has 48 divisors (see below), whose sum is σ = 1174918080. Its totient is φ = 129479904.

The previous prime is 420811091. The next prime is 420811093. The reversal of 420811092 is 290118024.

It is an interprime number because it is at equal distance from previous prime (420811091) and next prime (420811093).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420811091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148458 + ... + 151265.

It is an arithmetic number, because the mean of its divisors is an integer number (24477460).

Almost surely, 2^420811092 is an apocalyptic number.

It is an amenable number.

420811092 is an abundant number, since it is smaller than the sum of its proper divisors (754106988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420811092 is a wasteful number, since it uses less digits than its factorization.

420811092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299749 (or 299741 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 420811092 is about 20513.6806058786. The cubic root of 420811092 is about 749.3690052764.

The spelling of 420811092 in words is "four hundred twenty million, eight hundred eleven thousand, ninety-two".