1244321402 has 8 divisors (see below), whose sum is σ = 1868368512. Its totient is φ = 621531900.

The previous prime is 1244321347. The next prime is 1244321411. The reversal of 1244321402 is 2041234421.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311924 + ... + 315887.

It is an arithmetic number, because the mean of its divisors is an integer number (233546064).

Almost surely, 2^1244321402 is an apocalyptic number.

1244321402 is a deficient number, since it is larger than the sum of its proper divisors (624047110).

1244321402 is an equidigital number, since it uses as much as digits as its factorization.

1244321402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628804.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1244321402 is about 35274.9401416927. The cubic root of 1244321402 is about 1075.5836461448.

Adding to 1244321402 its reverse (2041234421), we get a palindrome (3285555823).

The spelling of 1244321402 in words is "one billion, two hundred forty-four million, three hundred twenty-one thousand, four hundred two".