2130400454 has 32 divisors (see below), whose sum is σ = 3936527616. Its totient is φ = 842050080.

The previous prime is 2130400453. The next prime is 2130400501. The reversal of 2130400454 is 4540040312.

It is a super-2 number, since 2×2130400454² = 9077212188806812232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130400453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230429 + ... + 239495.

It is an arithmetic number, because the mean of its divisors is an integer number (123016488).

Almost surely, 2^2130400454 is an apocalyptic number.

2130400454 is a deficient number, since it is larger than the sum of its proper divisors (1806127162).

2130400454 is a wasteful number, since it uses less digits than its factorization.

2130400454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10380.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2130400454 is about 46156.2612654015. The cubic root of 2130400454 is about 1286.7289789534.

Adding to 2130400454 its reverse (4540040312), we get a palindrome (6670440766).

The spelling of 2130400454 in words is "two billion, one hundred thirty million, four hundred thousand, four hundred fifty-four".