1030400240 has 20 divisors (see below), whose sum is σ = 2395680744. Its totient is φ = 412160064.

The previous prime is 1030400237. The next prime is 1030400297. The reversal of 1030400240 is 420040301.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6439922 + ... + 6440081.

Almost surely, 2^1030400240 is an apocalyptic number.

1030400240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030400240 is an abundant number, since it is smaller than the sum of its proper divisors (1365280504).

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

1030400240 is a wasteful number, since it uses less digits than its factorization.

1030400240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12880016 (or 12880010 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1030400240 is about 32099.8479747179. The cubic root of 1030400240 is about 1010.0324271522.

Adding to 1030400240 its reverse (420040301), we get a palindrome (1450440541).

The spelling of 1030400240 in words is "one billion, thirty million, four hundred thousand, two hundred forty".