1242467898 has 32 divisors (see below), whose sum is σ = 2849030016. Its totient is φ = 353852928.

The previous prime is 1242467873. The next prime is 1242467903. The reversal of 1242467898 is 8987642421.

It is a self number, because there is not a number n which added to its sum of digits gives 1242467898.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34111 + ... + 60402.

It is an arithmetic number, because the mean of its divisors is an integer number (89032188).

Almost surely, 2^1242467898 is an apocalyptic number.

1242467898 is an abundant number, since it is smaller than the sum of its proper divisors (1606562118).

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

1242467898 is a wasteful number, since it uses less digits than its factorization.

1242467898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94838.

The product of its digits is 1548288, while the sum is 51.

The square root of 1242467898 is about 35248.6581021179. The cubic root of 1242467898 is about 1075.0493283296.

The spelling of 1242467898 in words is "one billion, two hundred forty-two million, four hundred sixty-seven thousand, eight hundred ninety-eight".