1420077312 has 144 divisors (see below), whose sum is σ = 4302701760. Its totient is φ = 461721600.

The previous prime is 1420077301. The next prime is 1420077331. The reversal of 1420077312 is 2137700241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280887 + ... + 285897.

Almost surely, 2^1420077312 is an apocalyptic number.

1420077312 is a gapful number since it is divisible by the number (12) 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 1420077312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2151350880).

1420077312 is an abundant number, since it is smaller than the sum of its proper divisors (2882624448).

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

1420077312 is an equidigital number, since it uses as much as digits as its factorization.

1420077312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1420077312 is about 37683.9131725993. The cubic root of 1420077312 is about 1124.0112628313.

Adding to 1420077312 its reverse (2137700241), we get a palindrome (3557777553).

The spelling of 1420077312 in words is "one billion, four hundred twenty million, seventy-seven thousand, three hundred twelve".