618490470 has 192 divisors, whose sum is σ = 1769693184. Its totient is φ = 137237760.

The previous prime is 618490469. The next prime is 618490501. The reversal of 618490470 is 74094816.

It is a happy number.

It is a super-2 number, since 2×618490470² = 765060922961641800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3238075 + ... + 3238265.

It is an arithmetic number, because the mean of its divisors is an integer number (9217152).

Almost surely, 2^618490470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618490470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884846592).

618490470 is an abundant number, since it is smaller than the sum of its proper divisors (1151202714).

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

618490470 is a wasteful number, since it uses less digits than its factorization.

618490470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 618490470 is about 24869.4686312354. The cubic root of 618490470 is about 852.0093041590.

The spelling of 618490470 in words is "six hundred eighteen million, four hundred ninety thousand, four hundred seventy".