2123415400 has 48 divisors (see below), whose sum is σ = 4992453900. Its totient is φ = 839815680.

The previous prime is 2123415383. The next prime is 2123415451. The reversal of 2123415400 is 45143212.

It can be written as a sum of positive squares in 6 ways, for example, as 140138244 + 1983277156 = 11838^2 + 44534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41847 + ... + 77446.

Almost surely, 2^2123415400 is an apocalyptic number.

2123415400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123415400 is an abundant number, since it is smaller than the sum of its proper divisors (2869038500).

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

2123415400 is a wasteful number, since it uses less digits than its factorization.

2123415400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119398 (or 119389 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2123415400 is about 46080.5316809605. The cubic root of 2123415400 is about 1285.3211509375.

Adding to 2123415400 its reverse (45143212), we get a palindrome (2168558612).

The spelling of 2123415400 in words is "two billion, one hundred twenty-three million, four hundred fifteen thousand, four hundred".