2147200440 has 128 divisors (see below), whose sum is σ = 8031121920. Its totient is φ = 446169600.

The previous prime is 2147200423. The next prime is 2147200457. The reversal of 2147200440 is 440027412.

It is an interprime number because it is at equal distance from previous prime (2147200423) and next prime (2147200457).

It is a super-2 number, since 2×2147200440² = 9220939459072387200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2147200440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106951 + ... + 125430.

It is an arithmetic number, because the mean of its divisors is an integer number (62743140).

Almost surely, 2^2147200440 is an apocalyptic number.

2147200440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2147200440 is an abundant number, since it is smaller than the sum of its proper divisors (5883921480).

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

2147200440 is a wasteful number, since it uses less digits than its factorization.

2147200440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232413 (or 232409 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 2147200440 is about 46337.8942119730. The cubic root of 2147200440 is about 1290.1024376318.

Adding to 2147200440 its reverse (440027412), we get a palindrome (2587227852).

The spelling of 2147200440 in words is "two billion, one hundred forty-seven million, two hundred thousand, four hundred forty".