7949428 has 12 divisors (see below), whose sum is σ = 13938372. Its totient is φ = 3967040.

The previous prime is 7949411. The next prime is 7949443. The reversal of 7949428 is 8249497.

It can be written as a sum of positive squares in 2 ways, for example, as 2696164 + 5253264 = 1642^2 + 2292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858 + ... + 4078.

It is an arithmetic number, because the mean of its divisors is an integer number (1161531).

Almost surely, 2^7949428 is an apocalyptic number.

It is an amenable number.

7949428 is a deficient number, since it is larger than the sum of its proper divisors (5988944).

7949428 is a wasteful number, since it uses less digits than its factorization.

7949428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842 (or 3840 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 7949428 is about 2819.4730004027. The cubic root of 7949428 is about 199.5776755045.

It can be divided in two parts, 794942 and 8, that multiplied together give a palindrome (6359536).

The spelling of 7949428 in words is "seven million, nine hundred forty-nine thousand, four hundred twenty-eight".