1420551312 has 80 divisors (see below), whose sum is σ = 3877251840. Its totient is φ = 447440896.

The previous prime is 1420551289. The next prime is 1420551343. The reversal of 1420551312 is 2131550241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 54568 + ... + 76280.

It is an arithmetic number, because the mean of its divisors is an integer number (48465648).

Almost surely, 2^1420551312 is an apocalyptic number.

1420551312 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 1420551312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1938625920).

1420551312 is an abundant number, since it is smaller than the sum of its proper divisors (2456700528).

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

1420551312 is a wasteful number, since it uses less digits than its factorization.

1420551312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21800 (or 21794 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1420551312 is about 37690.2018036518. The cubic root of 1420551312 is about 1124.1363081527.

The spelling of 1420551312 in words is "one billion, four hundred twenty million, five hundred fifty-one thousand, three hundred twelve".