1620414 has 12 divisors (see below), whose sum is σ = 3510936. Its totient is φ = 540132.

The previous prime is 1620413. The next prime is 1620431. The reversal of 1620414 is 4140261.

1620414 is a `hidden beast` number, since 1 + 620 + 41 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 90023 = 1620414 / (1 + 6 + 2 + 0 + 4 + 1 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620413) 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 5 ways as a sum of consecutive naturals, for example, 44994 + ... + 45029.

It is an arithmetic number, because the mean of its divisors is an integer number (292578).

2^1620414 is an apocalyptic number.

1620414 is an abundant number, since it is smaller than the sum of its proper divisors (1890522).

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

1620414 is a wasteful number, since it uses less digits than its factorization.

1620414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90031 (or 90028 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1620414 is about 1272.9548303062. The cubic root of 1620414 is about 117.4560330447.

Adding to 1620414 its reverse (4140261), we get a palindrome (5760675).

The spelling of 1620414 in words is "one million, six hundred twenty thousand, four hundred fourteen".