1426666415 has 8 divisors (see below), whose sum is σ = 1713065568. Its totient is φ = 1140622560.

The previous prime is 1426666411. The next prime is 1426666477. The reversal of 1426666415 is 5146666241.

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

It is not a de Polignac number, because 1426666415 - 2² = 1426666411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426666411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79907 + ... + 96116.

It is an arithmetic number, because the mean of its divisors is an integer number (214133196).

Almost surely, 2^1426666415 is an apocalyptic number.

1426666415 is a deficient number, since it is larger than the sum of its proper divisors (286399153).

1426666415 is a wasteful number, since it uses less digits than its factorization.

1426666415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177649.

The product of its digits is 207360, while the sum is 41.

The square root of 1426666415 is about 37771.2379331152. The cubic root of 1426666415 is about 1125.7470370018.

The spelling of 1426666415 in words is "one billion, four hundred twenty-six million, six hundred sixty-six thousand, four hundred fifteen".