1402420513 has 8 divisors (see below), whose sum is σ = 1523666088. Its totient is φ = 1283084544.

The previous prime is 1402420507. The next prime is 1402420517. The reversal of 1402420513 is 3150242041.

It can be written as a sum of positive squares in 4 ways, for example, as 252396769 + 1150023744 = 15887^2 + 33912^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1402420513 - 2²¹ = 1400323361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402420517) 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, 475870 + ... + 478807.

It is an arithmetic number, because the mean of its divisors is an integer number (190458261).

Almost surely, 2^1402420513 is an apocalyptic number.

1402420513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1402420513 is a deficient number, since it is larger than the sum of its proper divisors (121245575).

1402420513 is a wasteful number, since it uses less digits than its factorization.

1402420513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954803.

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

The square root of 1402420513 is about 37448.9053645097. The cubic root of 1402420513 is about 1119.3332854349. Note that the first 3 decimals are identical.

Adding to 1402420513 its reverse (3150242041), we get a palindrome (4552662554).

The spelling of 1402420513 in words is "one billion, four hundred two million, four hundred twenty thousand, five hundred thirteen".