1420495020 has 288 divisors, whose sum is σ = 5213085696. Its totient is φ = 306201600.

The previous prime is 1420495003. The next prime is 1420495039. The reversal of 1420495020 is 205940241.

It is a super-2 number, since 2×1420495020² = 4035612203689600800, which contains 22 as substring.

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 95 ways as a sum of consecutive naturals, for example, 1601017 + ... + 1601903.

It is an arithmetic number, because the mean of its divisors is an integer number (18100992).

Almost surely, 2^1420495020 is an apocalyptic number.

1420495020 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 1420495020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2606542848).

1420495020 is an abundant number, since it is smaller than the sum of its proper divisors (3792590676).

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

1420495020 is a wasteful number, since it uses less digits than its factorization.

1420495020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1420495020 is about 37689.4550239188. The cubic root of 1420495020 is about 1124.1214592893.

The spelling of 1420495020 in words is "one billion, four hundred twenty million, four hundred ninety-five thousand, twenty".