1420341840 has 120 divisors (see below), whose sum is σ = 5050612008. Its totient is φ = 356474880.

The previous prime is 1420341779. The next prime is 1420341863. The reversal of 1420341840 is 481430241.

1420341840 is a `hidden beast` number, since 1 + 4 + 203 + 418 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 731594304 + 688747536 = 27048^2 + 26244^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45781 + ... + 70260.

Almost surely, 2^1420341840 is an apocalyptic number.

1420341840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420341840 is an abundant number, since it is smaller than the sum of its proper divisors (3630270168).

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

1420341840 is a wasteful number, since it uses less digits than its factorization.

1420341840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116077 (or 116068 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1420341840 is about 37687.4228357419. The cubic root of 1420341840 is about 1124.0810510484.

The spelling of 1420341840 in words is "one billion, four hundred twenty million, three hundred forty-one thousand, eight hundred forty".