605155440 has 40 divisors (see below), whose sum is σ = 1875982608. Its totient is φ = 161374720.

The previous prime is 605155429. The next prime is 605155483. The reversal of 605155440 is 44551506.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 605155398 and 605155407.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1260501 + ... + 1260980.

Almost surely, 2^605155440 is an apocalyptic number.

605155440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

605155440 is an abundant number, since it is smaller than the sum of its proper divisors (1270827168).

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

605155440 is a wasteful number, since it uses less digits than its factorization.

605155440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521497 (or 2521491 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 605155440 is about 24599.9073168986. The cubic root of 605155440 is about 845.8414828554.

The spelling of 605155440 in words is "six hundred five million, one hundred fifty-five thousand, four hundred forty".