1420140204 has 72 divisors (see below), whose sum is σ = 4132244480. Its totient is φ = 402825312.

The previous prime is 1420140193. The next prime is 1420140229. The reversal of 1420140204 is 4020410241.

1420140204 is a `hidden beast` number, since 1 + 420 + 1 + 40 + 204 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14757 + ... + 55299.

Almost surely, 2^1420140204 is an apocalyptic number.

1420140204 is a gapful number since it is divisible by the number (14) 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 1420140204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2066122240).

1420140204 is an abundant number, since it is smaller than the sum of its proper divisors (2712104276).

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

1420140204 is a wasteful number, since it uses less digits than its factorization.

1420140204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40699 (or 40694 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1420140204 is about 37684.7476308387. The cubic root of 1420140204 is about 1124.0278558886.

Adding to 1420140204 its reverse (4020410241), we get a palindrome (5440550445).

The spelling of 1420140204 in words is "one billion, four hundred twenty million, one hundred forty thousand, two hundred four".