2129267740 has 24 divisors (see below), whose sum is σ = 4472424432. Its totient is φ = 851523840.

The previous prime is 2129267717. The next prime is 2129267753. The reversal of 2129267740 is 477629212.

It is a super-2 number, since 2×2129267740² = 9067562217209415200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2129267693 and 2129267702.

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, 121407 + ... + 137833.

It is an arithmetic number, because the mean of its divisors is an integer number (186351018).

Almost surely, 2^2129267740 is an apocalyptic number.

2129267740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2129267740 is an abundant number, since it is smaller than the sum of its proper divisors (2343156692).

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

2129267740 is a wasteful number, since it uses less digits than its factorization.

2129267740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22917 (or 22915 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 2129267740 is about 46143.9892076964. The cubic root of 2129267740 is about 1286.5008912693.

The spelling of 2129267740 in words is "two billion, one hundred twenty-nine million, two hundred sixty-seven thousand, seven hundred forty".