1690273960 has 64 divisors (see below), whose sum is σ = 4135723920. Its totient is φ = 619130880.

The previous prime is 1690273957. The next prime is 1690273969. The reversal of 1690273960 is 693720961.

It can be written as a sum of positive squares in 8 ways, for example, as 1663171524 + 27102436 = 40782^2 + 5206^2 .

It is not an unprimeable number, because it can be changed into a prime (1690273969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8431 + ... + 58750.

Almost surely, 2^1690273960 is an apocalyptic number.

1690273960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1690273960 is an abundant number, since it is smaller than the sum of its proper divisors (2445449960).

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

1690273960 is a wasteful number, since it uses less digits than its factorization.

1690273960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67246 (or 67242 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 1690273960 is about 41112.9415148077. The cubic root of 1690273960 is about 1191.2027854827.

The spelling of 1690273960 in words is "one billion, six hundred ninety million, two hundred seventy-three thousand, nine hundred sixty".