667233390 has 16 divisors (see below), whose sum is σ = 1601360208. Its totient is φ = 177928896.

The previous prime is 667233389. The next prime is 667233401. The reversal of 667233390 is 93332766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11120527 + ... + 11120586.

It is an arithmetic number, because the mean of its divisors is an integer number (100085013).

Almost surely, 2^667233390 is an apocalyptic number.

667233390 is an abundant number, since it is smaller than the sum of its proper divisors (934126818).

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

667233390 is a wasteful number, since it uses less digits than its factorization.

667233390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22241123.

The product of its (nonzero) digits is 122472, while the sum is 39.

The square root of 667233390 is about 25830.8611935413. The cubic root of 667233390 is about 873.8279338427.

The spelling of 667233390 in words is "six hundred sixty-seven million, two hundred thirty-three thousand, three hundred ninety".