390040233 has 64 divisors (see below), whose sum is σ = 620642304. Its totient is φ = 217219200.

The previous prime is 390040219. The next prime is 390040243. The reversal of 390040233 is 332040093.

It is not a de Polignac number, because 390040233 - 2¹² = 390036137 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390040213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2846941 + ... + 2847077.

It is an arithmetic number, because the mean of its divisors is an integer number (9697536).

Almost surely, 2^390040233 is an apocalyptic number.

390040233 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

390040233 is a deficient number, since it is larger than the sum of its proper divisors (230602071).

390040233 is a wasteful number, since it uses less digits than its factorization.

390040233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 390040233 is about 19749.4362704357. The cubic root of 390040233 is about 730.6394803094.

The spelling of 390040233 in words is "three hundred ninety million, forty thousand, two hundred thirty-three".