333894428 has 72 divisors (see below), whose sum is σ = 707857920. Its totient is φ = 137259360.

The previous prime is 333894413. The next prime is 333894443. The reversal of 333894428 is 824498333.

It is an interprime number because it is at equal distance from previous prime (333894413) and next prime (333894443).

It is a super-2 number, since 2×333894428² = 222970978098894368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1087451 + ... + 1087757.

It is an arithmetic number, because the mean of its divisors is an integer number (9831360).

Almost surely, 2^333894428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 333894428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353928960).

333894428 is an abundant number, since it is smaller than the sum of its proper divisors (373963492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

333894428 is a wasteful number, since it uses less digits than its factorization.

333894428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 526 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

The square root of 333894428 is about 18272.7783328097. The cubic root of 333894428 is about 693.7500975786.

The spelling of 333894428 in words is "three hundred thirty-three million, eight hundred ninety-four thousand, four hundred twenty-eight".