1402430440 has 16 divisors (see below), whose sum is σ = 3155468580. Its totient is φ = 560972160.

The previous prime is 1402430431. The next prime is 1402430467. The reversal of 1402430440 is 440342041.

It can be written as a sum of positive squares in 2 ways, for example, as 1401903364 + 527076 = 37442^2 + 726^2 .

It is a super-3 number, since 3×1402430440³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17530341 + ... + 17530420.

Almost surely, 2^1402430440 is an apocalyptic number.

1402430440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402430440 is an abundant number, since it is smaller than the sum of its proper divisors (1753038140).

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

1402430440 is a wasteful number, since it uses less digits than its factorization.

1402430440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35060772 (or 35060768 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1402430440 is about 37449.0379048648. The cubic root of 1402430440 is about 1119.3359264866.

Adding to 1402430440 its reverse (440342041), we get a palindrome (1842772481).

The spelling of 1402430440 in words is "one billion, four hundred two million, four hundred thirty thousand, four hundred forty".