1972419 has 4 divisors (see below), whose sum is σ = 2629896. Its totient is φ = 1314944.

The previous prime is 1972417. The next prime is 1972423. The reversal of 1972419 is 9142791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1972419 - 2¹ = 1972417 is a prime.

It is a super-2 number, since 2×1972419² = 7780873423122, which contains 22 as substring.

It is a D-number.

1972419 is a lucky number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1972419.

It is not an unprimeable number, because it can be changed into a prime (1972417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328734 + ... + 328739.

It is an arithmetic number, because the mean of its divisors is an integer number (657474).

2^1972419 is an apocalyptic number.

1972419 is a deficient number, since it is larger than the sum of its proper divisors (657477).

1972419 is an equidigital number, since it uses as much as digits as its factorization.

1972419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657476.

The product of its digits is 4536, while the sum is 33.

The square root of 1972419 is about 1404.4283534592. The cubic root of 1972419 is about 125.4102573714.

The spelling of 1972419 in words is "one million, nine hundred seventy-two thousand, four hundred nineteen".