1426690 has 16 divisors (see below), whose sum is σ = 2680128. Its totient is φ = 545776.

The previous prime is 1426673. The next prime is 1426693. The reversal of 1426690 is 966241.

It is a super-2 number, since 2×1426690² = 4070888712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1426693) 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, 2872 + ... + 3331.

It is an arithmetic number, because the mean of its divisors is an integer number (167508).

2^1426690 is an apocalyptic number.

1426690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1426690 is a deficient number, since it is larger than the sum of its proper divisors (1253438).

1426690 is a wasteful number, since it uses less digits than its factorization.

1426690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1426690 is about 1194.4412919855. The cubic root of 1426690 is about 112.5753240414.

It can be divided in two parts, 1426 and 690, that added together give a square (2116 = 46²).

The spelling of 1426690 in words is "one million, four hundred twenty-six thousand, six hundred ninety".