7257942 has 12 divisors (see below), whose sum is σ = 15725580. Its totient is φ = 2419308.

The previous prime is 7257941. The next prime is 7257947. The reversal of 7257942 is 2497527.

It is a junction number, because it is equal to n+sod(n) for n = 7257897 and 7257906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7257941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201592 + ... + 201627.

It is an arithmetic number, because the mean of its divisors is an integer number (1310465).

Almost surely, 2^7257942 is an apocalyptic number.

7257942 is an abundant number, since it is smaller than the sum of its proper divisors (8467638).

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

7257942 is a wasteful number, since it uses less digits than its factorization.

7257942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403227 (or 403224 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 7257942 is about 2694.0567922744. The cubic root of 7257942 is about 193.6144786601.

The spelling of 7257942 in words is "seven million, two hundred fifty-seven thousand, nine hundred forty-two".