420288044 has 12 divisors (see below), whose sum is σ = 802368168. Its totient is φ = 191040000.

The previous prime is 420288041. The next prime is 420288061. The reversal of 420288044 is 440882024.

It is a self number, because there is not a number n which added to its sum of digits gives 420288044.

It is not an unprimeable number, because it can be changed into a prime (420288041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4775957 + ... + 4776044.

It is an arithmetic number, because the mean of its divisors is an integer number (66864014).

Almost surely, 2^420288044 is an apocalyptic number.

420288044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420288044 is a deficient number, since it is larger than the sum of its proper divisors (382080124).

420288044 is a wasteful number, since it uses less digits than its factorization.

420288044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9552016 (or 9552014 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 420288044 is about 20500.9278814399. The cubic root of 420288044 is about 749.0583999769.

The spelling of 420288044 in words is "four hundred twenty million, two hundred eighty-eight thousand, forty-four".