420040310 has 16 divisors (see below), whose sum is σ = 757826496. Its totient is φ = 167626368.

The previous prime is 420040303. The next prime is 420040333. The reversal of 420040310 is 13040024.

It is a super-2 number, since 2×420040310² = 352867724049792200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 44174 + ... + 52833.

It is an arithmetic number, because the mean of its divisors is an integer number (47364156).

Almost surely, 2^420040310 is an apocalyptic number.

420040310 is a deficient number, since it is larger than the sum of its proper divisors (337786186).

420040310 is a wasteful number, since it uses less digits than its factorization.

420040310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97447.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 420040310 is about 20494.8849716216. The cubic root of 420040310 is about 748.9111964035.

Adding to 420040310 its reverse (13040024), we get a palindrome (433080334).

The spelling of 420040310 in words is "four hundred twenty million, forty thousand, three hundred ten".