825672740 has 24 divisors (see below), whose sum is σ = 1825172160. Its totient is φ = 312886368.

The previous prime is 825672739. The next prime is 825672761. The reversal of 825672740 is 47276528.

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, 1086032 + ... + 1086791.

It is an arithmetic number, because the mean of its divisors is an integer number (76048840).

Almost surely, 2^825672740 is an apocalyptic number.

It is an amenable number.

825672740 is an abundant number, since it is smaller than the sum of its proper divisors (999499420).

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

825672740 is a wasteful number, since it uses less digits than its factorization.

825672740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172851 (or 2172849 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 825672740 is about 28734.5217464986. The cubic root of 825672740 is about 938.1435898401.

The spelling of 825672740 in words is "eight hundred twenty-five million, six hundred seventy-two thousand, seven hundred forty".