1420434331 has 4 divisors (see below), whose sum is σ = 1421433952. Its totient is φ = 1419434712.

The previous prime is 1420434313. The next prime is 1420434347. The reversal of 1420434331 is 1334340241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420434331 - 2⁷ = 1420434203 is a prime.

It is a super-2 number, since 2×1420434331² = 4035267377366835122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420434296 and 1420434305.

It is not an unprimeable number, because it can be changed into a prime (1420474331) 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, 497676 + ... + 500521.

It is an arithmetic number, because the mean of its divisors is an integer number (355358488).

Almost surely, 2^1420434331 is an apocalyptic number.

1420434331 is a deficient number, since it is larger than the sum of its proper divisors (999621).

1420434331 is an equidigital number, since it uses as much as digits as its factorization.

1420434331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999620.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1420434331 is about 37688.6498962221. The cubic root of 1420434331 is about 1124.1054501334.

Adding to 1420434331 its reverse (1334340241), we get a palindrome (2754774572).

The spelling of 1420434331 in words is "one billion, four hundred twenty million, four hundred thirty-four thousand, three hundred thirty-one".