1671426 has 12 divisors (see below), whose sum is σ = 3621462. Its totient is φ = 557136.

The previous prime is 1671421. The next prime is 1671431. The reversal of 1671426 is 6241761.

It is an interprime number because it is at equal distance from previous prime (1671421) and next prime (1671431).

It can be written as a sum of positive squares in only one way, i.e., 950625 + 720801 = 975^2 + 849^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1671426.

It is not an unprimeable number, because it can be changed into a prime (1671421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46411 + ... + 46446.

2^1671426 is an apocalyptic number.

1671426 is an abundant number, since it is smaller than the sum of its proper divisors (1950036).

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

1671426 is a wasteful number, since it uses less digits than its factorization.

1671426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92865 (or 92862 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1671426 is about 1292.8364165663. The cubic root of 1671426 is about 118.6758591681.

The spelling of 1671426 in words is "one million, six hundred seventy-one thousand, four hundred twenty-six".