617197042 has 144 divisors (see below), whose sum is σ = 1292530176. Its totient is φ = 219542400.

The previous prime is 617197039. The next prime is 617197051. The reversal of 617197042 is 240791716.

It is a junction number, because it is equal to n+sod(n) for n = 617196992 and 617197010.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8454718 + ... + 8454790.

It is an arithmetic number, because the mean of its divisors is an integer number (8975904).

Almost surely, 2^617197042 is an apocalyptic number.

617197042 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

617197042 is an abundant number, since it is smaller than the sum of its proper divisors (675333134).

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

617197042 is a wasteful number, since it uses less digits than its factorization.

617197042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 617197042 is about 24843.4506862473. The cubic root of 617197042 is about 851.4149636704.

The spelling of 617197042 in words is "six hundred seventeen million, one hundred ninety-seven thousand, forty-two".