369528381 has 12 divisors (see below), whose sum is σ = 533941408. Its totient is φ = 246270024.

The previous prime is 369528343. The next prime is 369528389. The reversal of 369528381 is 183825963.

It is a happy number.

369528381 is a `hidden beast` number, since 369 + 5 + 283 + 8 + 1 = 666.

It is not a de Polignac number, because 369528381 - 2¹⁸ = 369266237 is a prime.

It is a super-2 number, since 2×369528381² = 273102448728962322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (369528389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35166 + ... + 44448.

Almost surely, 2^369528381 is an apocalyptic number.

It is an amenable number.

369528381 is a deficient number, since it is larger than the sum of its proper divisors (164413027).

369528381 is a wasteful number, since it uses less digits than its factorization.

369528381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13712 (or 13709 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 369528381 is about 19223.1210005035. The cubic root of 369528381 is about 717.6002804311.

The spelling of 369528381 in words is "three hundred sixty-nine million, five hundred twenty-eight thousand, three hundred eighty-one".