671151240 has 96 divisors (see below), whose sum is σ = 2251641600. Its totient is φ = 173197440.

The previous prime is 671151191. The next prime is 671151241. The reversal of 671151240 is 42151176.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (671151241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18910 + ... + 41229.

It is an arithmetic number, because the mean of its divisors is an integer number (23454600).

Almost surely, 2^671151240 is an apocalyptic number.

671151240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671151240 is an abundant number, since it is smaller than the sum of its proper divisors (1580490360).

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

671151240 is a wasteful number, since it uses less digits than its factorization.

671151240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60187 (or 60180 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 671151240 is about 25906.5868072195. The cubic root of 671151240 is about 875.5349066747.

The spelling of 671151240 in words is "six hundred seventy-one million, one hundred fifty-one thousand, two hundred forty".