420840982 has 32 divisors (see below), whose sum is σ = 693100800. Its totient is φ = 191001888.

The previous prime is 420840971. The next prime is 420840983. The reversal of 420840982 is 289048024.

It is a super-3 number, since 3×420840982³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420840983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76033 + ... + 81379.

It is an arithmetic number, because the mean of its divisors is an integer number (21659400).

Almost surely, 2^420840982 is an apocalyptic number.

420840982 is a deficient number, since it is larger than the sum of its proper divisors (272259818).

420840982 is a wasteful number, since it uses less digits than its factorization.

420840982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 420840982 is about 20514.4091311449. The cubic root of 420840982 is about 749.3867472907.

The spelling of 420840982 in words is "four hundred twenty million, eight hundred forty thousand, nine hundred eighty-two".