2782213980 has 96 divisors (see below), whose sum is σ = 9587956224. Its totient is φ = 587015424.

The previous prime is 2782213963. The next prime is 2782213981. The reversal of 2782213980 is 893122872.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782213981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249322 + ... + 260241.

It is an arithmetic number, because the mean of its divisors is an integer number (99874544).

Almost surely, 2^2782213980 is an apocalyptic number.

2782213980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2782213980 is an abundant number, since it is smaller than the sum of its proper divisors (6805742244).

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

2782213980 is a wasteful number, since it uses less digits than its factorization.

2782213980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509595 (or 509593 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 2782213980 is about 52746.6963894422. The cubic root of 2782213980 is about 1406.4690383942.

The spelling of 2782213980 in words is "two billion, seven hundred eighty-two million, two hundred thirteen thousand, nine hundred eighty".