428508542 has 16 divisors (see below), whose sum is σ = 801366912. Its totient is φ = 166951320.

The previous prime is 428508533. The next prime is 428508547. The reversal of 428508542 is 245805824.

It is a junction number, because it is equal to n+sod(n) for n = 428508496 and 428508505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428508547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391108 + ... + 1391415.

It is an arithmetic number, because the mean of its divisors is an integer number (50085432).

Almost surely, 2^428508542 is an apocalyptic number.

428508542 is a deficient number, since it is larger than the sum of its proper divisors (372858370).

428508542 is a wasteful number, since it uses less digits than its factorization.

428508542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782543.

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 428508542 is about 20700.4478695510. The cubic root of 428508542 is about 753.9105624156.

The spelling of 428508542 in words is "four hundred twenty-eight million, five hundred eight thousand, five hundred forty-two".