420459340 has 24 divisors (see below), whose sum is σ = 1009102752. Its totient is φ = 144157440.

The previous prime is 420459337. The next prime is 420459367. The reversal of 420459340 is 43954024.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501501 + ... + 1501780.

It is an arithmetic number, because the mean of its divisors is an integer number (42045948).

Almost surely, 2^420459340 is an apocalyptic number.

It is an amenable number.

420459340 is an abundant number, since it is smaller than the sum of its proper divisors (588643412).

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

420459340 is a wasteful number, since it uses less digits than its factorization.

420459340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003297 (or 3003295 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 420459340 is about 20505.1052179695. The cubic root of 420459340 is about 749.1601502580.

The spelling of 420459340 in words is "four hundred twenty million, four hundred fifty-nine thousand, three hundred forty".