420082540 has 24 divisors (see below), whose sum is σ = 883058400. Its totient is φ = 167864448.

The previous prime is 420082471. The next prime is 420082543. The reversal of 420082540 is 45280024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420082543) 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, 10969 + ... + 30991.

It is an arithmetic number, because the mean of its divisors is an integer number (36794100).

Almost surely, 2^420082540 is an apocalyptic number.

It is an amenable number.

420082540 is an abundant number, since it is smaller than the sum of its proper divisors (462975860).

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

420082540 is a wasteful number, since it uses less digits than its factorization.

420082540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21081 (or 21079 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 420082540 is about 20495.9152027910. The cubic root of 420082540 is about 748.9362935662.

The spelling of 420082540 in words is "four hundred twenty million, eighty-two thousand, five hundred forty".