1426277621 has 8 divisors (see below), whose sum is σ = 1474497024. Its totient is φ = 1378742400.

The previous prime is 1426277609. The next prime is 1426277639. The reversal of 1426277621 is 1267726241.

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

It is a cyclic number.

It is not a de Polignac number, because 1426277621 - 2²² = 1422083317 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 (1426277641) 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, 166805 + ... + 175146.

It is an arithmetic number, because the mean of its divisors is an integer number (184312128).

Almost surely, 2^1426277621 is an apocalyptic number.

It is an amenable number.

1426277621 is a deficient number, since it is larger than the sum of its proper divisors (48219403).

1426277621 is an equidigital number, since it uses as much as digits as its factorization.

1426277621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342091.

The product of its digits is 56448, while the sum is 38.

The square root of 1426277621 is about 37766.0908885206. The cubic root of 1426277621 is about 1125.6447651476.

The spelling of 1426277621 in words is "one billion, four hundred twenty-six million, two hundred seventy-seven thousand, six hundred twenty-one".