2738493440 has 48 divisors (see below), whose sum is σ = 6570804240. Its totient is φ = 1095393280.

The previous prime is 2738493419. The next prime is 2738493449. The reversal of 2738493440 is 443948372.

It is a junction number, because it is equal to n+sod(n) for n = 2738493391 and 2738493400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2738493449) 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, 123476 + ... + 143955.

It is an arithmetic number, because the mean of its divisors is an integer number (136891755).

Almost surely, 2^2738493440 is an apocalyptic number.

2738493440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2738493440 is an abundant number, since it is smaller than the sum of its proper divisors (3832310800).

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

2738493440 is an equidigital number, since it uses as much as digits as its factorization.

2738493440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267458 (or 267438 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 2738493440 is about 52330.6166598484. The cubic root of 2738493440 is about 1399.0628830668.

The spelling of 2738493440 in words is "two billion, seven hundred thirty-eight million, four hundred ninety-three thousand, four hundred forty".