2138063480 has 64 divisors (see below), whose sum is σ = 5821295040. Its totient is φ = 689928192.

The previous prime is 2138063479. The next prime is 2138063491. The reversal of 2138063480 is 843608312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2138063480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219827 + ... + 229346.

It is an arithmetic number, because the mean of its divisors is an integer number (90957735).

Almost surely, 2^2138063480 is an apocalyptic number.

2138063480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2138063480 is an abundant number, since it is smaller than the sum of its proper divisors (3683231560).

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

2138063480 is a wasteful number, since it uses less digits than its factorization.

2138063480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449208 (or 449204 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 2138063480 is about 46239.1985224658. The cubic root of 2138063480 is about 1288.2699159767.

The spelling of 2138063480 in words is "two billion, one hundred thirty-eight million, sixty-three thousand, four hundred eighty".