1302040044 has 36 divisors (see below), whose sum is σ = 3294070416. Its totient is φ = 433643808.

The previous prime is 1302040009. The next prime is 1302040063. The reversal of 1302040044 is 4400402031.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1302039999 and 1302040026.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29242 + ... + 58814.

It is an arithmetic number, because the mean of its divisors is an integer number (91501956).

Almost surely, 2^1302040044 is an apocalyptic number.

It is an amenable number.

1302040044 is an abundant number, since it is smaller than the sum of its proper divisors (1992030372).

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

1302040044 is a wasteful number, since it uses less digits than its factorization.

1302040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30806 (or 30801 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1302040044 is about 36083.7919847679. The cubic root of 1302040044 is about 1091.9634794372.

Adding to 1302040044 its reverse (4400402031), we get a palindrome (5702442075).

The spelling of 1302040044 in words is "one billion, three hundred two million, forty thousand, forty-four".