2219427 has 16 divisors (see below), whose sum is σ = 3758080. Its totient is φ = 1268136.

The previous prime is 2219423. The next prime is 2219449. The reversal of 2219427 is 7249122.

It is not a de Polignac number, because 2219427 - 2² = 2219423 is a prime.

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

It is a d-powerful number, because it can be written as 2³ + 2⁹ + 1 + 9 + 4⁶ + 2²¹ + 7⁶ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2219427.

It is not an unprimeable number, because it can be changed into a prime (2219423) 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, 5683 + ... + 6060.

It is an arithmetic number, because the mean of its divisors is an integer number (234880).

2^2219427 is an apocalyptic number.

2219427 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2219427 is a deficient number, since it is larger than the sum of its proper divisors (1538653).

2219427 is a wasteful number, since it uses less digits than its factorization.

2219427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11759 (or 11753 counting only the distinct ones).

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

The square root of 2219427 is about 1489.7741439561. The cubic root of 2219427 is about 130.4408504568.

The spelling of 2219427 in words is "two million, two hundred nineteen thousand, four hundred twenty-seven".