1420100800 has 84 divisors (see below), whose sum is σ = 3575772376. Its totient is φ = 554803200.

The previous prime is 1420100783. The next prime is 1420100807. The reversal of 1420100800 is 80010241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1420100807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58480 + ... + 79120.

Almost surely, 2^1420100800 is an apocalyptic number.

1420100800 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 1420100800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1787886188).

1420100800 is an abundant number, since it is smaller than the sum of its proper divisors (2155671576).

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

1420100800 is a wasteful number, since it uses less digits than its factorization.

1420100800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20706 (or 20691 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1420100800 is about 37684.2248162278. The cubic root of 1420100800 is about 1124.0174598251.

The spelling of 1420100800 in words is "one billion, four hundred twenty million, one hundred thousand, eight hundred".