1240104028 has 6 divisors (see below), whose sum is σ = 2170182056. Its totient is φ = 620052012.

The previous prime is 1240103933. The next prime is 1240104029. The reversal of 1240104028 is 8204010421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240104029) 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 as a sum of consecutive naturals, namely, 155013000 + ... + 155013007.

Almost surely, 2^1240104028 is an apocalyptic number.

It is an amenable number.

1240104028 is a deficient number, since it is larger than the sum of its proper divisors (930078028).

1240104028 is a wasteful number, since it uses less digits than its factorization.

1240104028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310026011 (or 310026009 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1240104028 is about 35215.1107906819. The cubic root of 1240104028 is about 1074.3671134652.

Adding to 1240104028 its reverse (8204010421), we get a palindrome (9444114449).

The spelling of 1240104028 in words is "one billion, two hundred forty million, one hundred four thousand, twenty-eight".