437021434 has 4 divisors (see below), whose sum is σ = 655532154. Its totient is φ = 218510716.

The previous prime is 437021407. The next prime is 437021441. The reversal of 437021434 is 434120734.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434120734 = 2 ⋅217060367.

It can be written as a sum of positive squares in only one way, i.e., 355209409 + 81812025 = 18847^2 + 9045^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109255357 + ... + 109255360.

Almost surely, 2^437021434 is an apocalyptic number.

437021434 is a deficient number, since it is larger than the sum of its proper divisors (218510720).

437021434 is a wasteful number, since it uses less digits than its factorization.

437021434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218510719.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 437021434 is about 20905.0576177154. The cubic root of 437021434 is about 758.8703404105.

The spelling of 437021434 in words is "four hundred thirty-seven million, twenty-one thousand, four hundred thirty-four".