7442128 has 10 divisors (see below), whose sum is σ = 14419154. Its totient is φ = 3721056.

The previous prime is 7442119. The next prime is 7442137. The reversal of 7442128 is 8212447.

It is an interprime number because it is at equal distance from previous prime (7442119) and next prime (7442137).

It can be written as a sum of positive squares in only one way, i.e., 7441984 + 144 = 2728^2 + 12^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7442096 and 7442105.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 232551 + ... + 232582.

Almost surely, 2^7442128 is an apocalyptic number.

It is an amenable number.

7442128 is a deficient number, since it is larger than the sum of its proper divisors (6977026).

7442128 is a wasteful number, since it uses less digits than its factorization.

7442128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465141 (or 465135 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 7442128 is about 2728.0263928342. The cubic root of 7442128 is about 195.2386121324.

It can be divided in two parts, 7442 and 128, that multiplied together give a square (952576 = 976²).

The spelling of 7442128 in words is "seven million, four hundred forty-two thousand, one hundred twenty-eight".