428236037 has 4 divisors (see below), whose sum is σ = 428285760. Its totient is φ = 428186316.

The previous prime is 428235991. The next prime is 428236099. The reversal of 428236037 is 730632824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 428236037 - 2¹⁴ = 428219653 is a prime.

It is a super-2 number, since 2×428236037² = 366772206770930738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428235988 and 428236006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428236537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8237 + ... + 30402.

It is an arithmetic number, because the mean of its divisors is an integer number (107071440).

Almost surely, 2^428236037 is an apocalyptic number.

It is an amenable number.

428236037 is a deficient number, since it is larger than the sum of its proper divisors (49723).

428236037 is a wasteful number, since it uses less digits than its factorization.

428236037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49722.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 428236037 is about 20693.8647188001. The cubic root of 428236037 is about 753.7507149890.

The spelling of 428236037 in words is "four hundred twenty-eight million, two hundred thirty-six thousand, thirty-seven".