1420055500 has 96 divisors (see below), whose sum is σ = 3239466048. Its totient is φ = 543296000.

The previous prime is 1420055479. The next prime is 1420055503. The reversal of 1420055500 is 55500241.

It is not an unprimeable number, because it can be changed into a prime (1420055503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085847 + ... + 1087153.

It is an arithmetic number, because the mean of its divisors is an integer number (33744438).

Almost surely, 2^1420055500 is an apocalyptic number.

1420055500 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 1420055500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619733024).

1420055500 is an abundant number, since it is smaller than the sum of its proper divisors (1819410548).

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

1420055500 is a wasteful number, since it uses less digits than its factorization.

1420055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 1420055500 is about 37683.6237641764. The cubic root of 1420055500 is about 1124.0055079664.

Adding to 1420055500 its reverse (55500241), we get a palindrome (1475555741).

The spelling of 1420055500 in words is "one billion, four hundred twenty million, fifty-five thousand, five hundred".