1097442 has 16 divisors (see below), whose sum is σ = 2438880. Its totient is φ = 365796.

The previous prime is 1097441. The next prime is 1097443. The reversal of 1097442 is 2447901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1097441) and next prime (1097443).

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 (1097441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10108 + ... + 10215.

It is an arithmetic number, because the mean of its divisors is an integer number (152430).

2^1097442 is an apocalyptic number.

1097442 is an abundant number, since it is smaller than the sum of its proper divisors (1341438).

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

1097442 is a wasteful number, since it uses less digits than its factorization.

1097442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20334 (or 20328 counting only the distinct ones).

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

The square root of 1097442 is about 1047.5886597324. The cubic root of 1097442 is about 103.1479320903.

It can be divided in two parts, 109744 and 2, that added together give a triangular number (109746 = T₄₆₈).

The spelling of 1097442 in words is "one million, ninety-seven thousand, four hundred forty-two".