1457420442 has 8 divisors (see below), whose sum is σ = 2914840896. Its totient is φ = 485806812.

The previous prime is 1457420431. The next prime is 1457420443. The reversal of 1457420442 is 2440247541.

It is a sphenic number, since it is the product of 3 distinct primes.

1457420442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1457420443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121451698 + ... + 121451709.

It is an arithmetic number, because the mean of its divisors is an integer number (364355112).

Almost surely, 2^1457420442 is an apocalyptic number.

1457420442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1457420442 is a wasteful number, since it uses less digits than its factorization.

1457420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242903412.

The product of its (nonzero) digits is 35840, while the sum is 33.

The square root of 1457420442 is about 38176.1763669438. The cubic root of 1457420442 is about 1133.7786786303.

Adding to 1457420442 its reverse (2440247541), we get a palindrome (3897667983).

The spelling of 1457420442 in words is "one billion, four hundred fifty-seven million, four hundred twenty thousand, four hundred forty-two".