1420527780 has 360 divisors, whose sum is σ = 5390497728. Its totient is φ = 306716544.

The previous prime is 1420527763. The next prime is 1420527781. The reversal of 1420527780 is 877250241.

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

It is not an unprimeable number, because it can be changed into a prime (1420527781) 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 119 ways as a sum of consecutive naturals, for example, 4093567 + ... + 4093913.

Almost surely, 2^1420527780 is an apocalyptic number.

1420527780 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 1420527780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695248864).

1420527780 is an abundant number, since it is smaller than the sum of its proper divisors (3969969948).

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

1420527780 is a wasteful number, since it uses less digits than its factorization.

1420527780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 1420527780 is about 37689.8896257338. The cubic root of 1420527780 is about 1124.1301008627.

The spelling of 1420527780 in words is "one billion, four hundred twenty million, five hundred twenty-seven thousand, seven hundred eighty".