1420431504420 has 48 divisors (see below), whose sum is σ = 4084700332608. Its totient is φ = 368544389760.

The previous prime is 1420431504367. The next prime is 1420431504421. The reversal of 1420431504420 is 244051340241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1420431504421) 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, 319914786 + ... + 319919225.

It is an arithmetic number, because the mean of its divisors is an integer number (85097923596).

Almost surely, 2^{1420431504420} is an apocalyptic number.

1420431504420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420431504420 is an abundant number, since it is smaller than the sum of its proper divisors (2664268828188).

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

1420431504420 is a wasteful number, since it uses less digits than its factorization.

1420431504420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639834060 (or 639834058 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 1420431504420 its reverse (244051340241), we get a palindrome (1664482844661).

The spelling of 1420431504420 in words is "one trillion, four hundred twenty billion, four hundred thirty-one million, five hundred four thousand, four hundred twenty".