428490753 has 4 divisors (see below), whose sum is σ = 571321008. Its totient is φ = 285660500.

The previous prime is 428490749. The next prime is 428490781. The reversal of 428490753 is 357094824.

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.

It is a cyclic number.

It is not a de Polignac number, because 428490753 - 2² = 428490749 is a prime.

It is a super-3 number, since 3×428490753³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (428490053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71415123 + ... + 71415128.

It is an arithmetic number, because the mean of its divisors is an integer number (142830252).

Almost surely, 2^428490753 is an apocalyptic number.

It is an amenable number.

428490753 is a deficient number, since it is larger than the sum of its proper divisors (142830255).

428490753 is a wasteful number, since it uses less digits than its factorization.

428490753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142830254.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 428490753 is about 20700.0181883978. The cubic root of 428490753 is about 753.9001297176.

The spelling of 428490753 in words is "four hundred twenty-eight million, four hundred ninety thousand, seven hundred fifty-three".