660739414 has 16 divisors (see below), whose sum is σ = 1023540336. Its totient is φ = 319658400.

The previous prime is 660739403. The next prime is 660739447. The reversal of 660739414 is 414937066.

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, 11272 + ... + 38059.

It is an arithmetic number, because the mean of its divisors is an integer number (63971271).

Almost surely, 2^660739414 is an apocalyptic number.

660739414 is a deficient number, since it is larger than the sum of its proper divisors (362800922).

660739414 is a wasteful number, since it uses less digits than its factorization.

660739414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49551.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 660739414 is about 25704.8519544463. The cubic root of 660739414 is about 870.9837878141.

The spelling of 660739414 in words is "six hundred sixty million, seven hundred thirty-nine thousand, four hundred fourteen".