302140044 has 60 divisors (see below), whose sum is σ = 791491008. Its totient is φ = 100504800.

The previous prime is 302140037. The next prime is 302140049. The reversal of 302140044 is 440041203.

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 = 302139999 and 302140026.

It is not an unprimeable number, because it can be changed into a prime (302140049) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 304389 + ... + 305379.

Almost surely, 2^302140044 is an apocalyptic number.

It is an amenable number.

302140044 is an abundant number, since it is smaller than the sum of its proper divisors (489350964).

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

302140044 is a wasteful number, since it uses less digits than its factorization.

302140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 1937 counting only the distinct ones).

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

The square root of 302140044 is about 17382.1760432922. The cubic root of 302140044 is about 671.0209755178.

Adding to 302140044 its reverse (440041203), we get a palindrome (742181247).

The spelling of 302140044 in words is "three hundred two million, one hundred forty thousand, forty-four".