1606770940 has 12 divisors (see below), whose sum is σ = 3374219016. Its totient is φ = 642708368.

The previous prime is 1606770931. The next prime is 1606770947. The reversal of 1606770940 is 490776061.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1606770893 and 1606770902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606770947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40169254 + ... + 40169293.

It is an arithmetic number, because the mean of its divisors is an integer number (281184918).

Almost surely, 2^1606770940 is an apocalyptic number.

1606770940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1606770940 is an abundant number, since it is smaller than the sum of its proper divisors (1767448076).

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

1606770940 is a wasteful number, since it uses less digits than its factorization.

1606770940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80338556 (or 80338554 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1606770940 is about 40084.5473967213. The cubic root of 1606770940 is about 1171.2546358135.

The spelling of 1606770940 in words is "one billion, six hundred six million, seven hundred seventy thousand, nine hundred forty".