1493278242 has 16 divisors (see below), whose sum is σ = 2990027520. Its totient is φ = 497180912.

The previous prime is 1493278211. The next prime is 1493278247. The reversal of 1493278242 is 2428723941.

It is a super-2 number, since 2×1493278242² = 4459759816061221128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1493278194 and 1493278203.

It is not an unprimeable number, because it can be changed into a prime (1493278247) 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, 139017 + ... + 149372.

It is an arithmetic number, because the mean of its divisors is an integer number (186876720).

Almost surely, 2^1493278242 is an apocalyptic number.

1493278242 is an abundant number, since it is smaller than the sum of its proper divisors (1496749278).

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

1493278242 is a wasteful number, since it uses less digits than its factorization.

1493278242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289257.

The product of its digits is 193536, while the sum is 42.

The square root of 1493278242 is about 38642.9585047522. The cubic root of 1493278242 is about 1143.0017949390.

The spelling of 1493278242 in words is "one billion, four hundred ninety-three million, two hundred seventy-eight thousand, two hundred forty-two".