7287942 has 8 divisors (see below), whose sum is σ = 14575896. Its totient is φ = 2429312.

The previous prime is 7287919. The next prime is 7287947. The reversal of 7287942 is 2497827.

7287942 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

7287942 is an admirable number.

It is a super-2 number, since 2×7287942² = 106228197190728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7287942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7287947) 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, 607323 + ... + 607334.

It is an arithmetic number, because the mean of its divisors is an integer number (1821987).

Almost surely, 2^7287942 is an apocalyptic number.

7287942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7287942 is a wasteful number, since it uses less digits than its factorization.

7287942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214662.

The product of its digits is 56448, while the sum is 39.

The square root of 7287942 is about 2699.6188619877. The cubic root of 7287942 is about 193.8808741856.

The spelling of 7287942 in words is "seven million, two hundred eighty-seven thousand, nine hundred forty-two".