617945244 has 48 divisors (see below), whose sum is σ = 1650663168. Its totient is φ = 176254848.

The previous prime is 617945239. The next prime is 617945267. The reversal of 617945244 is 442549716.

It is a hoax number, since the sum of its digits (42) 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 (42).

It is a junction number, because it is equal to n+sod(n) for n = 617945196 and 617945205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45867 + ... + 57789.

It is an arithmetic number, because the mean of its divisors is an integer number (34388816).

Almost surely, 2^617945244 is an apocalyptic number.

It is an amenable number.

617945244 is an abundant number, since it is smaller than the sum of its proper divisors (1032717924).

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

617945244 is a wasteful number, since it uses less digits than its factorization.

617945244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12554 (or 12552 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 617945244 is about 24858.5044602446. The cubic root of 617945244 is about 851.7588695834.

The spelling of 617945244 in words is "six hundred seventeen million, nine hundred forty-five thousand, two hundred forty-four".