60397640 has 16 divisors (see below), whose sum is σ = 135894780. Its totient is φ = 24159040.

The previous prime is 60397621. The next prime is 60397657. The reversal of 60397640 is 4679306.

It can be written as a sum of positive squares in 2 ways, for example, as 60248644 + 148996 = 7762^2 + 386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 60397640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754931 + ... + 755010.

Almost surely, 2^60397640 is an apocalyptic number.

It is an amenable number.

60397640 is an abundant number, since it is smaller than the sum of its proper divisors (75497140).

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

60397640 is a wasteful number, since it uses less digits than its factorization.

60397640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509952 (or 1509948 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 60397640 is about 7771.5918575283. The cubic root of 60397640 is about 392.3496983580.

The spelling of 60397640 in words is "sixty million, three hundred ninety-seven thousand, six hundred forty".