1420864431 has 16 divisors (see below), whose sum is σ = 2166242304. Its totient is φ = 811504224.

The previous prime is 1420864421. The next prime is 1420864463. The reversal of 1420864431 is 1344680241.

It is not a de Polignac number, because 1420864431 - 2⁹ = 1420863919 is a prime.

It is a super-2 number, since 2×1420864431² = 4037711462561907522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1420864392 and 1420864401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420864411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26925 + ... + 59721.

It is an arithmetic number, because the mean of its divisors is an integer number (135390144).

Almost surely, 2^1420864431 is an apocalyptic number.

1420864431 is a deficient number, since it is larger than the sum of its proper divisors (745377873).

1420864431 is a wasteful number, since it uses less digits than its factorization.

1420864431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34870.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 1420864431 is about 37694.3554262439. The cubic root of 1420864431 is about 1124.2188964114.

The spelling of 1420864431 in words is "one billion, four hundred twenty million, eight hundred sixty-four thousand, four hundred thirty-one".