1617946340 has 24 divisors (see below), whose sum is σ = 3398516352. Its totient is φ = 647020640.

The previous prime is 1617946333. The next prime is 1617946357. The reversal of 1617946340 is 436497161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109175 + ... + 123105.

It is an arithmetic number, because the mean of its divisors is an integer number (141604848).

Almost surely, 2^1617946340 is an apocalyptic number.

1617946340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1617946340 is an abundant number, since it is smaller than the sum of its proper divisors (1780570012).

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

1617946340 is a wasteful number, since it uses less digits than its factorization.

1617946340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19747 (or 19745 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1617946340 is about 40223.7037081371. The cubic root of 1617946340 is about 1173.9637981034.

The spelling of 1617946340 in words is "one billion, six hundred seventeen million, nine hundred forty-six thousand, three hundred forty".