2215494020 has 12 divisors (see below), whose sum is σ = 4652537484. Its totient is φ = 886197600.

The previous prime is 2215494013. The next prime is 2215494041. The reversal of 2215494020 is 204945122.

It can be written as a sum of positive squares in 2 ways, for example, as 1053911296 + 1161582724 = 32464^2 + 34082^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55387331 + ... + 55387370.

It is an arithmetic number, because the mean of its divisors is an integer number (387711457).

Almost surely, 2^2215494020 is an apocalyptic number.

2215494020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215494020 is an abundant number, since it is smaller than the sum of its proper divisors (2437043464).

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

2215494020 is a wasteful number, since it uses less digits than its factorization.

2215494020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110774710 (or 110774708 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2215494020 is about 47069.0346193758. The cubic root of 2215494020 is about 1303.6375479338.

The spelling of 2215494020 in words is "two billion, two hundred fifteen million, four hundred ninety-four thousand, twenty".