1848405402 has 12 divisors (see below), whose sum is σ = 4004878410. Its totient is φ = 616135128.

The previous prime is 1848405397. The next prime is 1848405407. The reversal of 1848405402 is 2045048481.

It is an interprime number because it is at equal distance from previous prime (1848405397) and next prime (1848405407).

It can be written as a sum of positive squares in only one way, i.e., 1839637881 + 8767521 = 42891^2 + 2961^2 .

It is not an unprimeable number, because it can be changed into a prime (1848405407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51344577 + ... + 51344612.

Almost surely, 2^1848405402 is an apocalyptic number.

1848405402 is an abundant number, since it is smaller than the sum of its proper divisors (2156473008).

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

1848405402 is a wasteful number, since it uses less digits than its factorization.

1848405402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102689197 (or 102689194 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

The square root of 1848405402 is about 42993.0855138358. The cubic root of 1848405402 is about 1227.2482166717.

The spelling of 1848405402 in words is "one billion, eight hundred forty-eight million, four hundred five thousand, four hundred two".