1240463340 has 72 divisors (see below), whose sum is σ = 3765914880. Its totient is φ = 330511104.

The previous prime is 1240463321. The next prime is 1240463351. The reversal of 1240463340 is 433640421.

1240463340 is a `hidden beast` number, since 1 + 24 + 0 + 4 + 633 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296181 + ... + 300339.

Almost surely, 2^1240463340 is an apocalyptic number.

1240463340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240463340 is an abundant number, since it is smaller than the sum of its proper divisors (2525451540).

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

1240463340 is a wasteful number, since it uses less digits than its factorization.

1240463340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5831 (or 5826 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 1240463340 is about 35220.2120947617. The cubic root of 1240463340 is about 1074.4708670509.

The spelling of 1240463340 in words is "one billion, two hundred forty million, four hundred sixty-three thousand, three hundred forty".