1617257342 has 8 divisors (see below), whose sum is σ = 2426107032. Its totient is φ = 808555000.

The previous prime is 1617257329. The next prime is 1617257353. The reversal of 1617257342 is 2437527161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1617257296 and 1617257305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3284 + ... + 56967.

It is an arithmetic number, because the mean of its divisors is an integer number (303263379).

Almost surely, 2^1617257342 is an apocalyptic number.

1617257342 is a deficient number, since it is larger than the sum of its proper divisors (808849690).

1617257342 is a wasteful number, since it uses less digits than its factorization.

1617257342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73674.

The product of its digits is 70560, while the sum is 38.

The square root of 1617257342 is about 40215.1382193323. The cubic root of 1617257342 is about 1173.7971313578.

The spelling of 1617257342 in words is "one billion, six hundred seventeen million, two hundred fifty-seven thousand, three hundred forty-two".