2758838040 has 192 divisors, whose sum is σ = 10692864000. Its totient is φ = 603161856.

The previous prime is 2758838039. The next prime is 2758838107. The reversal of 2758838040 is 408388572.

2758838040 is a `hidden beast` number, since 27 + 588 + 3 + 8 + 0 + 40 = 666.

It is a super-2 number, since 2×2758838040² = 15222374661902083200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34161 + ... + 81759.

It is an arithmetic number, because the mean of its divisors is an integer number (55692000).

Almost surely, 2^2758838040 is an apocalyptic number.

2758838040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2758838040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5346432000).

2758838040 is an abundant number, since it is smaller than the sum of its proper divisors (7934025960).

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

2758838040 is a wasteful number, since it uses less digits than its factorization.

2758838040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47646 (or 47639 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 2758838040 is about 52524.6422167729. The cubic root of 2758838040 is about 1402.5189412829.

The spelling of 2758838040 in words is "two billion, seven hundred fifty-eight million, eight hundred thirty-eight thousand, forty".