1420062840 has 288 divisors, whose sum is σ = 5484192480. Its totient is φ = 324165888.

The previous prime is 1420062829. The next prime is 1420062851. The reversal of 1420062840 is 482600241.

1420062840 is a `hidden beast` number, since 14 + 20 + 0 + 628 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1420062829) and next prime (1420062851).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1836694 + ... + 1837466.

It is an arithmetic number, because the mean of its divisors is an integer number (19042335).

Almost surely, 2^1420062840 is an apocalyptic number.

1420062840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420062840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2742096240).

1420062840 is an abundant number, since it is smaller than the sum of its proper divisors (4064129640).

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

1420062840 is an frugal number, since it uses more digits than its factorization.

1420062840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 790 counting only the distinct ones).

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

The square root of 1420062840 is about 37683.7211538351. The cubic root of 1420062840 is about 1124.0074445541.

The spelling of 1420062840 in words is "one billion, four hundred twenty million, sixty-two thousand, eight hundred forty".