1972242 has 16 divisors (see below), whose sum is σ = 4382880. Its totient is φ = 657396.

The previous prime is 1972231. The next prime is 1972247. The reversal of 1972242 is 2422791.

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

It is not an unprimeable number, because it can be changed into a prime (1972247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18208 + ... + 18315.

It is an arithmetic number, because the mean of its divisors is an integer number (273930).

2^1972242 is an apocalyptic number.

1972242 is an abundant number, since it is smaller than the sum of its proper divisors (2410638).

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

1972242 is a wasteful number, since it uses less digits than its factorization.

1972242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36534 (or 36528 counting only the distinct ones).

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

The square root of 1972242 is about 1404.3653370829. The cubic root of 1972242 is about 125.4065059238.

The spelling of 1972242 in words is "one million, nine hundred seventy-two thousand, two hundred forty-two".