491776002 has 32 divisors (see below), whose sum is σ = 1128092160. Its totient is φ = 158636880.

The previous prime is 491775979. The next prime is 491776007. The reversal of 491776002 is 200677194.

It is a happy number.

491776002 is a `hidden beast` number, since 49 + 1 + 7 + 7 + 600 + 2 = 666.

It is a super-2 number, since 2×491776002² = 483687272286208008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (491776007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145213 + ... + 148560.

It is an arithmetic number, because the mean of its divisors is an integer number (35252880).

Almost surely, 2^491776002 is an apocalyptic number.

491776002 is an abundant number, since it is smaller than the sum of its proper divisors (636316158).

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

491776002 is a wasteful number, since it uses less digits than its factorization.

491776002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293815 (or 293809 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 491776002 is about 22176.0231331048. The cubic root of 491776002 is about 789.3248528578.

The spelling of 491776002 in words is "four hundred ninety-one million, seven hundred seventy-six thousand, two".