1670036940 has 432 divisors, whose sum is σ = 6249428640. Its totient is φ = 369515520.

The previous prime is 1670036933. The next prime is 1670036983. The reversal of 1670036940 is 496300761.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1670036895 and 1670036904.

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 143 ways as a sum of consecutive naturals, for example, 18764416 + ... + 18764504.

It is an arithmetic number, because the mean of its divisors is an integer number (14466270).

Almost surely, 2^1670036940 is an apocalyptic number.

1670036940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1670036940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3124714320).

1670036940 is an abundant number, since it is smaller than the sum of its proper divisors (4579391700).

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

1670036940 is a wasteful number, since it uses less digits than its factorization.

1670036940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1670036940 is about 40866.0854499180. The cubic root of 1670036940 is about 1186.4297435868.

The spelling of 1670036940 in words is "one billion, six hundred seventy million, thirty-six thousand, nine hundred forty".