7561428 has 24 divisors (see below), whose sum is σ = 20164032. Its totient is φ = 2160384.

The previous prime is 7561423. The next prime is 7561459. The reversal of 7561428 is 8241657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7561423) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 44925 + ... + 45092.

It is an arithmetic number, because the mean of its divisors is an integer number (840168).

Almost surely, 2^7561428 is an apocalyptic number.

It is an amenable number.

7561428 is an abundant number, since it is smaller than the sum of its proper divisors (12602604).

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

7561428 is a wasteful number, since it uses less digits than its factorization.

7561428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90031 (or 90029 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 7561428 is about 2749.8050840014. The cubic root of 7561428 is about 196.2763351950.

The spelling of 7561428 in words is "seven million, five hundred sixty-one thousand, four hundred twenty-eight".