428086942 has 8 divisors (see below), whose sum is σ = 649867176. Its totient is φ = 211464552.

The previous prime is 428086937. The next prime is 428086957. The reversal of 428086942 is 249680824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×428086942² = 366516859821822728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1289253 + ... + 1289584.

It is an arithmetic number, because the mean of its divisors is an integer number (81233397).

Almost surely, 2^428086942 is an apocalyptic number.

428086942 is a deficient number, since it is larger than the sum of its proper divisors (221780234).

428086942 is a wasteful number, since it uses less digits than its factorization.

428086942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578922.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 428086942 is about 20690.2620089742. The cubic root of 428086942 is about 753.6632293519.

The spelling of 428086942 in words is "four hundred twenty-eight million, eighty-six thousand, nine hundred forty-two".