437428 has 6 divisors (see below), whose sum is σ = 765506. Its totient is φ = 218712.

The previous prime is 437413. The next prime is 437467. The reversal of 437428 is 824734.

It can be written as a sum of positive squares in only one way, i.e., 242064 + 195364 = 492^2 + 442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 437396 and 437405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54675 + ... + 54682.

2⁴³⁷⁴²⁸ is an apocalyptic number.

It is an amenable number.

437428 is a deficient number, since it is larger than the sum of its proper divisors (328078).

437428 is a wasteful number, since it uses less digits than its factorization.

437428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109361 (or 109359 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 437428 is about 661.3833986426. The cubic root of 437428 is about 75.9105596035.

The spelling of 437428 in words is "four hundred thirty-seven thousand, four hundred twenty-eight".