1145402442 has 12 divisors (see below), whose sum is σ = 2481705330. Its totient is φ = 381800808.

The previous prime is 1145402437. The next prime is 1145402471. The reversal of 1145402442 is 2442045411.

1145402442 is a `hidden beast` number, since 114 + 540 + 2 + 4 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1048399641 + 97002801 = 32379^2 + 9849^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31816717 + ... + 31816752.

Almost surely, 2^1145402442 is an apocalyptic number.

1145402442 is an abundant number, since it is smaller than the sum of its proper divisors (1336302888).

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

1145402442 is a wasteful number, since it uses less digits than its factorization.

1145402442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63633477 (or 63633474 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 1145402442 is about 33843.7947340425. The cubic root of 1145402442 is about 1046.2915106238.

Adding to 1145402442 its reverse (2442045411), we get a palindrome (3587447853).

The spelling of 1145402442 in words is "one billion, one hundred forty-five million, four hundred two thousand, four hundred forty-two".