30773040 has 40 divisors (see below), whose sum is σ = 95397168. Its totient is φ = 8206080.

The previous prime is 30773023. The next prime is 30773047. The reversal of 30773040 is 4037703.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30773040.

It is not an unprimeable number, because it can be changed into a prime (30773047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63871 + ... + 64350.

Almost surely, 2^30773040 is an apocalyptic number.

30773040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30773040 is an abundant number, since it is smaller than the sum of its proper divisors (64624128).

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

30773040 is a wasteful number, since it uses less digits than its factorization.

30773040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128237 (or 128231 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 30773040 is about 5547.3453110474. The cubic root of 30773040 is about 313.3695546880.

The spelling of 30773040 in words is "thirty million, seven hundred seventy-three thousand, forty".