1422291780 has 288 divisors, whose sum is σ = 5483132928. Its totient is φ = 290304000.

The previous prime is 1422291727. The next prime is 1422291817. The reversal of 1422291780 is 871922241.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 506380 + ... + 509180.

It is an arithmetic number, because the mean of its divisors is an integer number (19038656).

Almost surely, 2^1422291780 is an apocalyptic number.

1422291780 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 1422291780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2741566464).

1422291780 is an abundant number, since it is smaller than the sum of its proper divisors (4060841148).

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

1422291780 is a wasteful number, since it uses less digits than its factorization.

1422291780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867 (or 2862 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1422291780 is about 37713.2838665635. The cubic root of 1422291780 is about 1124.5952203020.

It can be divided in two parts, 142 and 2291780, that added together give a palindrome (2291922).

The spelling of 1422291780 in words is "one billion, four hundred twenty-two million, two hundred ninety-one thousand, seven hundred eighty".