1421540302 has 16 divisors (see below), whose sum is σ = 2624382432. Its totient is φ = 562367520.

The previous prime is 1421540297. The next prime is 1421540303. The reversal of 1421540302 is 2030451241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421540303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3905149 + ... + 3905512.

It is an arithmetic number, because the mean of its divisors is an integer number (164023902).

Almost surely, 2^1421540302 is an apocalyptic number.

1421540302 is a deficient number, since it is larger than the sum of its proper divisors (1202842130).

1421540302 is a wasteful number, since it uses less digits than its factorization.

1421540302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810683.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1421540302 is about 37703.3195090300. The cubic root of 1421540302 is about 1124.3971227756.

Adding to 1421540302 its reverse (2030451241), we get a palindrome (3451991543).

The spelling of 1421540302 in words is "one billion, four hundred twenty-one million, five hundred forty thousand, three hundred two".