1977242 has 8 divisors (see below), whose sum is σ = 3061632. Its totient is φ = 956700.

The previous prime is 1977233. The next prime is 1977251. The reversal of 1977242 is 2427791.

It is an interprime number because it is at equal distance from previous prime (1977233) and next prime (1977251).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1977199 and 1977208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15884 + ... + 16007.

It is an arithmetic number, because the mean of its divisors is an integer number (382704).

2^1977242 is an apocalyptic number.

1977242 is a deficient number, since it is larger than the sum of its proper divisors (1084390).

1977242 is a wasteful number, since it uses less digits than its factorization.

1977242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31924.

The product of its digits is 7056, while the sum is 32.

The square root of 1977242 is about 1406.1443738109. The cubic root of 1977242 is about 125.5123927594.

The spelling of 1977242 in words is "one million, nine hundred seventy-seven thousand, two hundred forty-two".