428016238 has 32 divisors (see below), whose sum is σ = 710341632. Its totient is φ = 192175200.

The previous prime is 428016229. The next prime is 428016247. The reversal of 428016238 is 832610824.

It is an interprime number because it is at equal distance from previous prime (428016229) and next prime (428016247).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347083 + ... + 348313.

It is an arithmetic number, because the mean of its divisors is an integer number (22198176).

Almost surely, 2^428016238 is an apocalyptic number.

428016238 is a deficient number, since it is larger than the sum of its proper divisors (282325394).

428016238 is a wasteful number, since it uses less digits than its factorization.

428016238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 428016238 is about 20688.5533085327. The cubic root of 428016238 is about 753.6217347132.

The spelling of 428016238 in words is "four hundred twenty-eight million, sixteen thousand, two hundred thirty-eight".