1690794000 has 720 divisors, whose sum is σ = 7224287616. Its totient is φ = 381024000.

The previous prime is 1690793987. The next prime is 1690794031. The reversal of 1690794000 is 4970961.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 23813965 + ... + 23814035.

Almost surely, 2^1690794000 is an apocalyptic number.

1690794000 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 1690794000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3612143808).

1690794000 is an abundant number, since it is smaller than the sum of its proper divisors (5533493616).

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

1690794000 is an equidigital number, since it uses as much as digits as its factorization.

1690794000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1690794000 is about 41119.2655576434. The cubic root of 1690794000 is about 1191.3249371954.

The spelling of 1690794000 in words is "one billion, six hundred ninety million, seven hundred ninety-four thousand".