1420892772 has 48 divisors (see below), whose sum is σ = 3580167360. Its totient is φ = 436007808.

The previous prime is 1420892749. The next prime is 1420892773. The reversal of 1420892772 is 2772980241.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1420892773) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 45979 + ... + 70397.

It is an arithmetic number, because the mean of its divisors is an integer number (74586820).

Almost surely, 2^1420892772 is an apocalyptic number.

1420892772 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 1420892772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790083680).

1420892772 is an abundant number, since it is smaller than the sum of its proper divisors (2159274588).

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

1420892772 is a wasteful number, since it uses less digits than its factorization.

1420892772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24812 (or 24810 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1420892772 is about 37694.7313559866. The cubic root of 1420892772 is about 1124.2263710339.

The spelling of 1420892772 in words is "one billion, four hundred twenty million, eight hundred ninety-two thousand, seven hundred seventy-two".