2012404451 has 4 divisors (see below), whose sum is σ = 2012496312. Its totient is φ = 2012312592.

The previous prime is 2012404441. The next prime is 2012404477. The reversal of 2012404451 is 1544042102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2012404451 - 2²² = 2008210147 is a prime.

It is a super-2 number, since 2×2012404451² = 8099543348809222802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012404411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8180 + ... + 63966.

It is an arithmetic number, because the mean of its divisors is an integer number (503124078).

Almost surely, 2^2012404451 is an apocalyptic number.

2012404451 is a deficient number, since it is larger than the sum of its proper divisors (91861).

2012404451 is an equidigital number, since it uses as much as digits as its factorization.

2012404451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91860.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2012404451 is about 44859.8311521566. The cubic root of 2012404451 is about 1262.5204547351.

Adding to 2012404451 its reverse (1544042102), we get a palindrome (3556446553).

The spelling of 2012404451 in words is "two billion, twelve million, four hundred four thousand, four hundred fifty-one".