2154626426 has 8 divisors (see below), whose sum is σ = 3232161684. Its totient is φ = 1077239200.

The previous prime is 2154626423. The next prime is 2154626447. The reversal of 2154626426 is 6246264512.

It can be written as a sum of positive squares in 2 ways, for example, as 2097548401 + 57078025 = 45799^2 + 7555^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2154626426.

It is not an unprimeable number, because it can be changed into a prime (2154626423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12776 + ... + 66876.

Almost surely, 2^2154626426 is an apocalyptic number.

2154626426 is a deficient number, since it is larger than the sum of its proper divisors (1077535258).

2154626426 is a wasteful number, since it uses less digits than its factorization.

2154626426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74016.

The product of its digits is 138240, while the sum is 38.

The square root of 2154626426 is about 46417.9537032817. The cubic root of 2154626426 is about 1291.5879781094.

The spelling of 2154626426 in words is "two billion, one hundred fifty-four million, six hundred twenty-six thousand, four hundred twenty-six".