1097942 has 8 divisors (see below), whose sum is σ = 1668000. Its totient is φ = 541944.

The previous prime is 1097933. The next prime is 1097947. The reversal of 1097942 is 2497901.

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 = 1097899 and 1097908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097947) 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, 3317 + ... + 3632.

It is an arithmetic number, because the mean of its divisors is an integer number (208500).

2^1097942 is an apocalyptic number.

1097942 is a deficient number, since it is larger than the sum of its proper divisors (570058).

1097942 is an equidigital number, since it uses as much as digits as its factorization.

1097942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7030.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1097942 is about 1047.8272758427. The cubic root of 1097942 is about 103.1635946144.

The spelling of 1097942 in words is "one million, ninety-seven thousand, nine hundred forty-two".