612338890 has 32 divisors (see below), whose sum is σ = 1151781120. Its totient is φ = 233950464.

The previous prime is 612338887. The next prime is 612338917. The reversal of 612338890 is 98833216.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209922 + ... + 212818.

It is an arithmetic number, because the mean of its divisors is an integer number (35993160).

Almost surely, 2^612338890 is an apocalyptic number.

612338890 is a deficient number, since it is larger than the sum of its proper divisors (539442230).

612338890 is a wasteful number, since it uses less digits than its factorization.

612338890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 612338890 is about 24745.4822139315. The cubic root of 612338890 is about 849.1751583084.

The spelling of 612338890 in words is "six hundred twelve million, three hundred thirty-eight thousand, eight hundred ninety".