1426491 has 20 divisors (see below), whose sum is σ = 2326104. Its totient is φ = 864000.

The previous prime is 1426489. The next prime is 1426499. The reversal of 1426491 is 1946241.

1426491 is a `hidden beast` number, since 14 + 2 + 649 + 1 = 666.

It is not a de Polignac number, because 1426491 - 2¹ = 1426489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1426499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 91 + ... + 1691.

2^1426491 is an apocalyptic number.

1426491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1426491 is a deficient number, since it is larger than the sum of its proper divisors (899613).

1426491 is a wasteful number, since it uses less digits than its factorization.

1426491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624 (or 1615 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1426491 is about 1194.3579865350. The cubic root of 1426491 is about 112.5700896571.

The spelling of 1426491 in words is "one million, four hundred twenty-six thousand, four hundred ninety-one".