380298021 has 16 divisors (see below), whose sum is σ = 514498560. Its totient is φ = 249827760.

The previous prime is 380298019. The next prime is 380298029. The reversal of 380298021 is 120892083.

It is not a de Polignac number, because 380298021 - 2¹ = 380298019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380298029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148276 + ... + 150818.

It is an arithmetic number, because the mean of its divisors is an integer number (32156160).

Almost surely, 2^380298021 is an apocalyptic number.

It is an amenable number.

380298021 is a deficient number, since it is larger than the sum of its proper divisors (134200539).

380298021 is a wasteful number, since it uses less digits than its factorization.

380298021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 380298021 is about 19501.2312688199. The cubic root of 380298021 is about 724.5049468585.

The spelling of 380298021 in words is "three hundred eighty million, two hundred ninety-eight thousand, twenty-one".