2124266440 has 32 divisors (see below), whose sum is σ = 4857959160. Its totient is φ = 835776000.

The previous prime is 2124266429. The next prime is 2124266479. The reversal of 2124266440 is 446624212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1184598724 + 939667716 = 34418^2 + 30654^2 .

It is a super-2 number, since 2×2124266440² = 9025015816220547200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432861 + ... + 437740.

Almost surely, 2^2124266440 is an apocalyptic number.

2124266440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124266440 is an abundant number, since it is smaller than the sum of its proper divisors (2733692720).

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

2124266440 is a wasteful number, since it uses less digits than its factorization.

2124266440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870673 (or 870669 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 2124266440 is about 46089.7650243522. The cubic root of 2124266440 is about 1285.4928418855.

The spelling of 2124266440 in words is "two billion, one hundred twenty-four million, two hundred sixty-six thousand, four hundred forty".