537947428 has 12 divisors (see below), whose sum is σ = 941705100. Its totient is φ = 268888832.

The previous prime is 537947407. The next prime is 537947453. The reversal of 537947428 is 824749735.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49449024 + 488498404 = 7032^2 + 22102^2 .

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, 5701 + ... + 33292.

It is an arithmetic number, because the mean of its divisors is an integer number (78475425).

Almost surely, 2^537947428 is an apocalyptic number.

It is an amenable number.

537947428 is a deficient number, since it is larger than the sum of its proper divisors (403757672).

537947428 is a wasteful number, since it uses less digits than its factorization.

537947428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42446 (or 42444 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 49.

The square root of 537947428 is about 23193.6937118692. The cubic root of 537947428 is about 813.2922087212.

The spelling of 537947428 in words is "five hundred thirty-seven million, nine hundred forty-seven thousand, four hundred twenty-eight".