1244231402 has 16 divisors (see below), whose sum is σ = 1910855232. Its totient is φ = 607296480.

The previous prime is 1244231357. The next prime is 1244231413. The reversal of 1244231402 is 2041324421.

It is a super-2 number, since 2×1244231402² = 3096223563445771208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206963 + ... + 212889.

It is an arithmetic number, because the mean of its divisors is an integer number (119428452).

Almost surely, 2^1244231402 is an apocalyptic number.

1244231402 is a deficient number, since it is larger than the sum of its proper divisors (666623830).

1244231402 is a wasteful number, since it uses less digits than its factorization.

1244231402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8413.

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

The square root of 1244231402 is about 35273.6644254605. The cubic root of 1244231402 is about 1075.5577137069.

Adding to 1244231402 its reverse (2041324421), we get a palindrome (3285555823).

The spelling of 1244231402 in words is "one billion, two hundred forty-four million, two hundred thirty-one thousand, four hundred two".