9780672040 has 32 divisors (see below), whose sum is σ = 22037184000. Its totient is φ = 3906816064.

The previous prime is 9780672029. The next prime is 9780672059. The reversal of 9780672040 is 402760879.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141280 + ... + 198799.

It is an arithmetic number, because the mean of its divisors is an integer number (688662000).

Almost surely, 2^9780672040 is an apocalyptic number.

It is an amenable number.

9780672040 is an abundant number, since it is smaller than the sum of its proper divisors (12256511960).

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

9780672040 is a wasteful number, since it uses less digits than its factorization.

9780672040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340809 (or 340805 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 9780672040 is about 98897.2802457176. The cubic root of 9780672040 is about 2138.5671865792.

The spelling of 9780672040 in words is "nine billion, seven hundred eighty million, six hundred seventy-two thousand, forty".