1858984242 has 16 divisors (see below), whose sum is σ = 3756299232. Its totient is φ = 613272960.

The previous prime is 1858984241. The next prime is 1858984249. The reversal of 1858984242 is 2424898581.

It is not an unprimeable number, because it can be changed into a prime (1858984241) 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, 1596484 + ... + 1597647.

It is an arithmetic number, because the mean of its divisors is an integer number (234768702).

Almost surely, 2^1858984242 is an apocalyptic number.

1858984242 is an abundant number, since it is smaller than the sum of its proper divisors (1897314990).

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

1858984242 is a wasteful number, since it uses less digits than its factorization.

1858984242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194233.

The product of its digits is 1474560, while the sum is 51.

The square root of 1858984242 is about 43115.9395351650. The cubic root of 1858984242 is about 1229.5850368330.

It can be divided in two parts, 18589 and 84242, that added together give a triangular number (102831 = T₄₅₃).

The spelling of 1858984242 in words is "one billion, eight hundred fifty-eight million, nine hundred eighty-four thousand, two hundred forty-two".