1494840040 has 16 divisors (see below), whose sum is σ = 3363390180. Its totient is φ = 597936000.

The previous prime is 1494840019. The next prime is 1494840059. The reversal of 1494840040 is 400484941.

It can be written as a sum of positive squares in 2 ways, for example, as 1328894116 + 165945924 = 36454^2 + 12882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1494839978 and 1494840005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18685461 + ... + 18685540.

Almost surely, 2^1494840040 is an apocalyptic number.

1494840040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1494840040 is an abundant number, since it is smaller than the sum of its proper divisors (1868550140).

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

1494840040 is a wasteful number, since it uses less digits than its factorization.

1494840040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37371012 (or 37371008 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 1494840040 is about 38663.1612778883. The cubic root of 1494840040 is about 1143.4001390829.

The spelling of 1494840040 in words is "one billion, four hundred ninety-four million, eight hundred forty thousand, forty".