1304250040 has 16 divisors (see below), whose sum is σ = 2934562680. Its totient is φ = 521700000.

The previous prime is 1304250019. The next prime is 1304250043. The reversal of 1304250040 is 400524031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304250043) 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 in 3 ways as a sum of consecutive naturals, for example, 16303086 + ... + 16303165.

Almost surely, 2^1304250040 is an apocalyptic number.

1304250040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304250040 is an abundant number, since it is smaller than the sum of its proper divisors (1630312640).

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

1304250040 is a wasteful number, since it uses less digits than its factorization.

1304250040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32606262 (or 32606258 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1304250040 is about 36114.4021132844. The cubic root of 1304250040 is about 1092.5809389037.

Adding to 1304250040 its reverse (400524031), we get a palindrome (1704774071).

The spelling of 1304250040 in words is "one billion, three hundred four million, two hundred fifty thousand, forty".