1004135650 has 24 divisors (see below), whose sum is σ = 2134506240. Its totient is φ = 344274960.

The previous prime is 1004135621. The next prime is 1004135687. The reversal of 1004135650 is 565314001.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 1434130 + ... + 1434829.

It is an arithmetic number, because the mean of its divisors is an integer number (88937760).

Almost surely, 2^1004135650 is an apocalyptic number.

1004135650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1004135650 is an abundant number, since it is smaller than the sum of its proper divisors (1130370590).

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

1004135650 is a wasteful number, since it uses less digits than its factorization.

1004135650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868978 (or 2868973 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1004135650 is about 31688.0995012323. The cubic root of 1004135650 is about 1001.3766539542.

Adding to 1004135650 its reverse (565314001), we get a palindrome (1569449651).

The spelling of 1004135650 in words is "one billion, four million, one hundred thirty-five thousand, six hundred fifty".