79533040 has 20 divisors (see below), whose sum is σ = 184914504. Its totient is φ = 31813184.

The previous prime is 79533023. The next prime is 79533043. The reversal of 79533040 is 4033597.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 79532993 and 79533011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79533043) 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, 497002 + ... + 497161.

Almost surely, 2^79533040 is an apocalyptic number.

It is an amenable number.

79533040 is an abundant number, since it is smaller than the sum of its proper divisors (105381464).

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

79533040 is a wasteful number, since it uses less digits than its factorization.

79533040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994176 (or 994170 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 79533040 is about 8918.1298487968. The cubic root of 79533040 is about 430.0469391701.

The spelling of 79533040 in words is "seventy-nine million, five hundred thirty-three thousand, forty".