2229408240 has 80 divisors (see below), whose sum is σ = 6920176128. Its totient is φ = 593733888.

The previous prime is 2229408151. The next prime is 2229408257. The reversal of 2229408240 is 428049222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2229408240² = 9940522201159795200, which contains 22 as substring.

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, 191877 + ... + 203163.

Almost surely, 2^2229408240 is an apocalyptic number.

2229408240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2229408240 is an abundant number, since it is smaller than the sum of its proper divisors (4690767888).

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

2229408240 is a wasteful number, since it uses less digits than its factorization.

2229408240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12126 (or 12120 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2229408240 is about 47216.6097893527. The cubic root of 2229408240 is about 1306.3609823365.

The spelling of 2229408240 in words is "two billion, two hundred twenty-nine million, four hundred eight thousand, two hundred forty".