1494142890 has 32 divisors (see below), whose sum is σ = 3586959936. Its totient is φ = 398325120.

The previous prime is 1494142877. The next prime is 1494142891. The reversal of 1494142890 is 982414941.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1494142891) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 200430 + ... + 207750.

It is an arithmetic number, because the mean of its divisors is an integer number (112092498).

Almost surely, 2^1494142890 is an apocalyptic number.

1494142890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1494142890 is an abundant number, since it is smaller than the sum of its proper divisors (2092817046).

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

1494142890 is a wasteful number, since it uses less digits than its factorization.

1494142890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14134.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1494142890 is about 38654.1445384580. The cubic root of 1494142890 is about 1143.2223618992. Note that the first 3 decimals are identical.

The spelling of 1494142890 in words is "one billion, four hundred ninety-four million, one hundred forty-two thousand, eight hundred ninety".