58365640 has 16 divisors (see below), whose sum is σ = 131322780. Its totient is φ = 23346240.

The previous prime is 58365623. The next prime is 58365649. The reversal of 58365640 is 4656385.

It can be written as a sum of positive squares in 2 ways, for example, as 58155876 + 209764 = 7626^2 + 458^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 58365640.

It is not an unprimeable number, because it can be changed into a prime (58365649) 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, 729531 + ... + 729610.

Almost surely, 2^58365640 is an apocalyptic number.

It is an amenable number.

58365640 is an abundant number, since it is smaller than the sum of its proper divisors (72957140).

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

58365640 is a wasteful number, since it uses less digits than its factorization.

58365640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459152 (or 1459148 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 58365640 is about 7639.7408333006. The cubic root of 58365640 is about 387.8993787330.

It can be divided in two parts, 583656 and 40, that added together give a square (583696 = 764²).

The spelling of 58365640 in words is "fifty-eight million, three hundred sixty-five thousand, six hundred forty".