1463240440 has 32 divisors (see below), whose sum is σ = 3294420480. Its totient is φ = 584917632.

The previous prime is 1463240399. The next prime is 1463240447. The reversal of 1463240440 is 440423641.

It is a junction number, because it is equal to n+sod(n) for n = 1463240399 and 1463240408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1463240447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55522 + ... + 77518.

It is an arithmetic number, because the mean of its divisors is an integer number (102950640).

Almost surely, 2^1463240440 is an apocalyptic number.

1463240440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1463240440 is an abundant number, since it is smaller than the sum of its proper divisors (1831180040).

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

1463240440 is a wasteful number, since it uses less digits than its factorization.

1463240440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23671 (or 23667 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1463240440 is about 38252.3259423528. The cubic root of 1463240440 is about 1135.2858679497.

The spelling of 1463240440 in words is "one billion, four hundred sixty-three million, two hundred forty thousand, four hundred forty".