1494840428 has 24 divisors (see below), whose sum is σ = 2773772400. Its totient is φ = 702908928.

The previous prime is 1494840421. The next prime is 1494840463. The reversal of 1494840428 is 8240484941.

It is not an unprimeable number, because it can be changed into a prime (1494840421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61373 + ... + 82196.

It is an arithmetic number, because the mean of its divisors is an integer number (115573850).

Almost surely, 2^1494840428 is an apocalyptic number.

It is an amenable number.

1494840428 is a deficient number, since it is larger than the sum of its proper divisors (1278931972).

1494840428 is a wasteful number, since it uses less digits than its factorization.

1494840428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143729 (or 143727 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 44.

The square root of 1494840428 is about 38663.1662955842. The cubic root of 1494840428 is about 1143.4002380097.

The spelling of 1494840428 in words is "one billion, four hundred ninety-four million, eight hundred forty thousand, four hundred twenty-eight".