1245428798 has 16 divisors (see below), whose sum is σ = 1891272240. Its totient is φ = 615020736.

The previous prime is 1245428797. The next prime is 1245428801. The reversal of 1245428798 is 8978245421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245428797) 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, 176861 + ... + 183767.

It is an arithmetic number, because the mean of its divisors is an integer number (118204515).

Almost surely, 2^1245428798 is an apocalyptic number.

1245428798 is a deficient number, since it is larger than the sum of its proper divisors (645843442).

1245428798 is a wasteful number, since it uses less digits than its factorization.

1245428798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8011.

The product of its digits is 1290240, while the sum is 50.

The square root of 1245428798 is about 35290.6332898689. The cubic root of 1245428798 is about 1075.9026269315.

The spelling of 1245428798 in words is "one billion, two hundred forty-five million, four hundred twenty-eight thousand, seven hundred ninety-eight".