7321942 has 8 divisors (see below), whose sum is σ = 11216736. Its totient is φ = 3583032.

The previous prime is 7321927. The next prime is 7321943. The reversal of 7321942 is 2491237.

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

It is a super-2 number, since 2×7321942² = 107221669302728, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7⁴ + 3¹¹ + 2⁷ + 1 + 9⁷ + 4⁹ + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 7321942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7321943) 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, 38853 + ... + 39040.

It is an arithmetic number, because the mean of its divisors is an integer number (1402092).

Almost surely, 2^7321942 is an apocalyptic number.

7321942 is a deficient number, since it is larger than the sum of its proper divisors (3894794).

7321942 is a wasteful number, since it uses less digits than its factorization.

7321942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77942.

The product of its digits is 3024, while the sum is 28.

The square root of 7321942 is about 2705.9087198204. The cubic root of 7321942 is about 194.1819068228.

The spelling of 7321942 in words is "seven million, three hundred twenty-one thousand, nine hundred forty-two".