368486640 has 60 divisors (see below), whose sum is σ = 1237503384. Its totient is φ = 98262912.

The previous prime is 368486633. The next prime is 368486647. The reversal of 368486640 is 46684863.

It is an interprime number because it is at equal distance from previous prime (368486633) and next prime (368486647).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368486647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255174 + ... + 256613.

Almost surely, 2^368486640 is an apocalyptic number.

368486640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

368486640 is an abundant number, since it is smaller than the sum of its proper divisors (869016744).

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

368486640 is a wasteful number, since it uses less digits than its factorization.

368486640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511806 (or 511797 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 368486640 is about 19196.0058345480. The cubic root of 368486640 is about 716.9253144898.

The spelling of 368486640 in words is "three hundred sixty-eight million, four hundred eighty-six thousand, six hundred forty".