1956429 has 12 divisors (see below), whose sum is σ = 2843932. Its totient is φ = 1296000.

The previous prime is 1956419. The next prime is 1956431. The reversal of 1956429 is 9246591.

1956429 is a `hidden beast` number, since 1 + 9 + 5 + 642 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10404 + 1946025 = 102^2 + 1395^2 .

It is not a de Polignac number, because 1956429 - 2¹³ = 1948237 is a prime.

It is a super-2 number, since 2×1956429² = 7655228864082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1956393 and 1956402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1029 + ... + 2229.

2^1956429 is an apocalyptic number.

It is an amenable number.

1956429 is a deficient number, since it is larger than the sum of its proper divisors (887503).

1956429 is a wasteful number, since it uses less digits than its factorization.

1956429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1385 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1956429 is about 1398.7240614217. The cubic root of 1956429 is about 125.0704456252.

The spelling of 1956429 in words is "one million, nine hundred fifty-six thousand, four hundred twenty-nine".