1243413402 has 64 divisors (see below), whose sum is σ = 3129560064. Its totient is φ = 319933440.

The previous prime is 1243413401. The next prime is 1243413461. The reversal of 1243413402 is 2043143421.

It is not an unprimeable number, because it can be changed into a prime (1243413401) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 36858 + ... + 62010.

It is an arithmetic number, because the mean of its divisors is an integer number (48899376).

Almost surely, 2^1243413402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243413402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1564780032).

1243413402 is an abundant number, since it is smaller than the sum of its proper divisors (1886146662).

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

1243413402 is a wasteful number, since it uses less digits than its factorization.

1243413402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25283.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1243413402 is about 35262.0674663299. The cubic root of 1243413402 is about 1075.3219593064.

Adding to 1243413402 its reverse (2043143421), we get a palindrome (3286556823).

The spelling of 1243413402 in words is "one billion, two hundred forty-three million, four hundred thirteen thousand, four hundred two".