1420014402 has 80 divisors (see below), whose sum is σ = 3244131000. Its totient is φ = 464175360.

The previous prime is 1420014397. The next prime is 1420014439. The reversal of 1420014402 is 2044100241.

It can be written as a sum of positive squares in 4 ways, for example, as 941323761 + 478690641 = 30681^2 + 21879^2 .

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 39 ways as a sum of consecutive naturals, for example, 2147952 + ... + 2148612.

Almost surely, 2^1420014402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420014402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622065500).

1420014402 is an abundant number, since it is smaller than the sum of its proper divisors (1824116598).

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

1420014402 is a wasteful number, since it uses less digits than its factorization.

1420014402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 904 counting only the distinct ones).

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

The square root of 1420014402 is about 37683.0784570475. The cubic root of 1420014402 is about 1123.9946645348.

Adding to 1420014402 its reverse (2044100241), we get a palindrome (3464114643).

The spelling of 1420014402 in words is "one billion, four hundred twenty million, fourteen thousand, four hundred two".