1946421 has 12 divisors (see below), whose sum is σ = 2934048. Its totient is φ = 1241064.

The previous prime is 1946407. The next prime is 1946429. The reversal of 1946421 is 1246491.

1946421 is a `hidden beast` number, since 19 + 4 + 642 + 1 = 666.

It is not a de Polignac number, because 1946421 - 2⁵ = 1946389 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1946429) 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, 4495 + ... + 4908.

It is an arithmetic number, because the mean of its divisors is an integer number (244504).

2^1946421 is an apocalyptic number.

It is an amenable number.

1946421 is a deficient number, since it is larger than the sum of its proper divisors (987627).

1946421 is a wasteful number, since it uses less digits than its factorization.

1946421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9432 (or 9429 counting only the distinct ones).

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

The square root of 1946421 is about 1395.1419282639. The cubic root of 1946421 is about 124.8568173859.

The spelling of 1946421 in words is "one million, nine hundred forty-six thousand, four hundred twenty-one".