1024340240 has 80 divisors (see below), whose sum is σ = 2969274240. Its totient is φ = 319272960.

The previous prime is 1024340237. The next prime is 1024340257. The reversal of 1024340240 is 420434201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76985 + ... + 89304.

It is an arithmetic number, because the mean of its divisors is an integer number (37115928).

Almost surely, 2^1024340240 is an apocalyptic number.

1024340240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1024340240 is an abundant number, since it is smaller than the sum of its proper divisors (1944934000).

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

1024340240 is a wasteful number, since it uses less digits than its factorization.

1024340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166320 (or 166314 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1024340240 is about 32005.3158084716. The cubic root of 1024340240 is about 1008.0484618088.

Adding to 1024340240 its reverse (420434201), we get a palindrome (1444774441).

The spelling of 1024340240 in words is "one billion, twenty-four million, three hundred forty thousand, two hundred forty".