1408538540 has 12 divisors (see below), whose sum is σ = 2957930976. Its totient is φ = 563415408.

The previous prime is 1408538539. The next prime is 1408538543. The reversal of 1408538540 is 458358041.

It is a junction number, because it is equal to n+sod(n) for n = 1408538494 and 1408538503.

It is not an unprimeable number, because it can be changed into a prime (1408538543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35213444 + ... + 35213483.

It is an arithmetic number, because the mean of its divisors is an integer number (246494248).

Almost surely, 2^1408538540 is an apocalyptic number.

1408538540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1408538540 is an abundant number, since it is smaller than the sum of its proper divisors (1549392436).

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

1408538540 is a wasteful number, since it uses less digits than its factorization.

1408538540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70426936 (or 70426934 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 1408538540 is about 37530.5014621441. The cubic root of 1408538540 is about 1120.9586127461.

It can be divided in two parts, 14085 and 38540, that added together give a palindrome (52625).

The spelling of 1408538540 in words is "one billion, four hundred eight million, five hundred thirty-eight thousand, five hundred forty".