2147229656 has 32 divisors (see below), whose sum is σ = 4729914000. Its totient is φ = 900935040.

The previous prime is 2147229649. The next prime is 2147229703. The reversal of 2147229656 is 6569227412.

It is a super-2 number, since 2×2147229656² = 9221190391211756672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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, 937331 + ... + 939618.

Almost surely, 2^2147229656 is an apocalyptic number.

2147229656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2147229656 is an abundant number, since it is smaller than the sum of its proper divisors (2582684344).

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

2147229656 is a wasteful number, since it uses less digits than its factorization.

2147229656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876979 (or 1876975 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 2147229656 is about 46338.2094604442. The cubic root of 2147229656 is about 1290.1082888883.

The spelling of 2147229656 in words is "two billion, one hundred forty-seven million, two hundred twenty-nine thousand, six hundred fifty-six".