1922427 has 16 divisors (see below), whose sum is σ = 3067680. Its totient is φ = 1182816.

The previous prime is 1922423. The next prime is 1922429. The reversal of 1922427 is 7242291.

It is not a de Polignac number, because 1922427 - 2² = 1922423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1922427.

It is not an unprimeable number, because it can be changed into a prime (1922423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2388 + ... + 3089.

It is an arithmetic number, because the mean of its divisors is an integer number (191730).

2^1922427 is an apocalyptic number.

1922427 is a deficient number, since it is larger than the sum of its proper divisors (1145253).

1922427 is a wasteful number, since it uses less digits than its factorization.

1922427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5499 (or 5493 counting only the distinct ones).

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

The square root of 1922427 is about 1386.5161376630. The cubic root of 1922427 is about 124.3416480019.

The spelling of 1922427 in words is "one million, nine hundred twenty-two thousand, four hundred twenty-seven".