605774640 has 40 divisors (see below), whose sum is σ = 1877902128. Its totient is φ = 161539840.

The previous prime is 605774629. The next prime is 605774641. The reversal of 605774640 is 46477506.

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

It is not an unprimeable number, because it can be changed into a prime (605774641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261791 + ... + 1262270.

Almost surely, 2^605774640 is an apocalyptic number.

605774640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

605774640 is an abundant number, since it is smaller than the sum of its proper divisors (1272127488).

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

605774640 is a wasteful number, since it uses less digits than its factorization.

605774640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524077 (or 2524071 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 605774640 is about 24612.4895124406. The cubic root of 605774640 is about 846.1298751590.

The spelling of 605774640 in words is "six hundred five million, seven hundred seventy-four thousand, six hundred forty".