1420076988 has 192 divisors, whose sum is σ = 4248115200. Its totient is φ = 406183680.

The previous prime is 1420076951. The next prime is 1420077007. The reversal of 1420076988 is 8896700241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1618806 + ... + 1619682.

It is an arithmetic number, because the mean of its divisors is an integer number (22125600).

Almost surely, 2^1420076988 is an apocalyptic number.

1420076988 is a gapful number since it is divisible by the number (18) 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 1420076988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2124057600).

1420076988 is an abundant number, since it is smaller than the sum of its proper divisors (2828038212).

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

1420076988 is a wasteful number, since it uses less digits than its factorization.

1420076988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1420076988 is about 37683.9088736824. The cubic root of 1420076988 is about 1124.0111773478.

It can be divided in two parts, 14 and 20076988, that added together give a palindrome (20077002).

The spelling of 1420076988 in words is "one billion, four hundred twenty million, seventy-six thousand, nine hundred eighty-eight".