368228021 has 8 divisors (see below), whose sum is σ = 423657600. Its totient is φ = 313504848.

The previous prime is 368228009. The next prime is 368228023. The reversal of 368228021 is 120822863.

368228021 = T₂₆₃ + T₂₆₄ + ... + T₁₃₀₅.

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

It is a cyclic number.

It is not a de Polignac number, because 368228021 - 2²⁶ = 301119157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368228023) 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, 175481 + ... + 177566.

It is an arithmetic number, because the mean of its divisors is an integer number (52957200).

Almost surely, 2^368228021 is an apocalyptic number.

It is an amenable number.

368228021 is a deficient number, since it is larger than the sum of its proper divisors (55429579).

368228021 is a wasteful number, since it uses less digits than its factorization.

368228021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353203.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 368228021 is about 19189.2683810509. The cubic root of 368228021 is about 716.7575527305.

The spelling of 368228021 in words is "three hundred sixty-eight million, two hundred twenty-eight thousand, twenty-one".