618342480 has 240 divisors, whose sum is σ = 2404846080. Its totient is φ = 139456512.

The previous prime is 618342449. The next prime is 618342493. The reversal of 618342480 is 84243816.

618342480 is a `hidden beast` number, since 61 + 83 + 42 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 397384 + ... + 398936.

It is an arithmetic number, because the mean of its divisors is an integer number (10020192).

Almost surely, 2^618342480 is an apocalyptic number.

618342480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618342480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1202423040).

618342480 is an abundant number, since it is smaller than the sum of its proper divisors (1786503600).

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

618342480 is a wasteful number, since it uses less digits than its factorization.

618342480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 618342480 is about 24866.4931182505. The cubic root of 618342480 is about 851.9413435781.

The spelling of 618342480 in words is "six hundred eighteen million, three hundred forty-two thousand, four hundred eighty".