618863040 has 84 divisors (see below), whose sum is σ = 2128640904. Its totient is φ = 165029376.

The previous prime is 618863029. The next prime is 618863083. The reversal of 618863040 is 40368816.

It is a happy number.

618863040 is a `hidden beast` number, since 6 + 18 + 8 + 630 + 4 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 618862986 and 618863004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104562 + ... + 110321.

Almost surely, 2^618863040 is an apocalyptic number.

618863040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

618863040 is an abundant number, since it is smaller than the sum of its proper divisors (1509777864).

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

618863040 is a wasteful number, since it uses less digits than its factorization.

618863040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214906 (or 214893 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 618863040 is about 24876.9580133906. The cubic root of 618863040 is about 852.1803493107.

The spelling of 618863040 in words is "six hundred eighteen million, eight hundred sixty-three thousand, forty".