1422085840 has 120 divisors (see below), whose sum is σ = 3867609600. Its totient is φ = 484856064.

The previous prime is 1422085823. The next prime is 1422085843. The reversal of 1422085840 is 485802241.

It is a junction number, because it is equal to n+sod(n) for n = 1422085796 and 1422085805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422085843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 779169 + ... + 780991.

It is an arithmetic number, because the mean of its divisors is an integer number (32230080).

Almost surely, 2^1422085840 is an apocalyptic number.

1422085840 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 1422085840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1933804800).

1422085840 is an abundant number, since it is smaller than the sum of its proper divisors (2445523760).

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

1422085840 is a wasteful number, since it uses less digits than its factorization.

1422085840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 2036 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 1422085840 is about 37710.5534300413. The cubic root of 1422085840 is about 1124.5409392883.

The spelling of 1422085840 in words is "one billion, four hundred twenty-two million, eighty-five thousand, eight hundred forty".