612667940 has 12 divisors (see below), whose sum is σ = 1286602716. Its totient is φ = 245067168.

The previous prime is 612667933. The next prime is 612667943. The reversal of 612667940 is 49766216.

It can be written as a sum of positive squares in 2 ways, for example, as 461476324 + 151191616 = 21482^2 + 12296^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (612667943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15316679 + ... + 15316718.

It is an arithmetic number, because the mean of its divisors is an integer number (107216893).

Almost surely, 2^612667940 is an apocalyptic number.

It is an amenable number.

612667940 is an abundant number, since it is smaller than the sum of its proper divisors (673934776).

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

612667940 is a wasteful number, since it uses less digits than its factorization.

612667940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30633406 (or 30633404 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 612667940 is about 24752.1300093548. The cubic root of 612667940 is about 849.3272369775.

The spelling of 612667940 in words is "six hundred twelve million, six hundred sixty-seven thousand, nine hundred forty".