1426390 has 48 divisors (see below), whose sum is σ = 3102624. Its totient is φ = 470400.

The previous prime is 1426379. The next prime is 1426393. The reversal of 1426390 is 936241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20055 + ... + 20125.

It is an arithmetic number, because the mean of its divisors is an integer number (64638).

2^1426390 is an apocalyptic number.

1426390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1426390 is an abundant number, since it is smaller than the sum of its proper divisors (1676234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1426390 is a wasteful number, since it uses less digits than its factorization.

1426390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1426390 is about 1194.3157036563. The cubic root of 1426390 is about 112.5674328235.

The spelling of 1426390 in words is "one million, four hundred twenty-six thousand, three hundred ninety".