671148390 has 32 divisors (see below), whose sum is σ = 1757189376. Its totient is φ = 162702560.

The previous prime is 671148383. The next prime is 671148433. The reversal of 671148390 is 93841176.

It is a super-2 number, since 2×671148390² = 900880322799184200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016562 + ... + 1017221.

It is an arithmetic number, because the mean of its divisors is an integer number (54912168).

Almost surely, 2^671148390 is an apocalyptic number.

671148390 is an abundant number, since it is smaller than the sum of its proper divisors (1086040986).

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

671148390 is a wasteful number, since it uses less digits than its factorization.

671148390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033804.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 671148390 is about 25906.5318018449. The cubic root of 671148390 is about 875.5336673723.

The spelling of 671148390 in words is "six hundred seventy-one million, one hundred forty-eight thousand, three hundred ninety".