1463839540 has 24 divisors (see below), whose sum is σ = 3145554720. Its totient is φ = 571918368.

The previous prime is 1463839537. The next prime is 1463839541. The reversal of 1463839540 is 459383641.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1463839541) 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, 850210 + ... + 851929.

It is an arithmetic number, because the mean of its divisors is an integer number (131064780).

Almost surely, 2^1463839540 is an apocalyptic number.

1463839540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1463839540 is an abundant number, since it is smaller than the sum of its proper divisors (1681715180).

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

1463839540 is a wasteful number, since it uses less digits than its factorization.

1463839540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702191 (or 1702189 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 1463839540 is about 38260.1560373190. The cubic root of 1463839540 is about 1135.4407882532.

The spelling of 1463839540 in words is "one billion, four hundred sixty-three million, eight hundred thirty-nine thousand, five hundred forty".