1631802042 has 48 divisors (see below), whose sum is σ = 4007945760. Its totient is φ = 475665696.

The previous prime is 1631802041. The next prime is 1631802079. The reversal of 1631802042 is 2402081361.

1631802042 is a `hidden beast` number, since 1 + 631 + 8 + 0 + 20 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1631801997 and 1631802015.

It is not an unprimeable number, because it can be changed into a prime (1631802041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179068 + ... + 187959.

It is an arithmetic number, because the mean of its divisors is an integer number (83498870).

Almost surely, 2^1631802042 is an apocalyptic number.

1631802042 is an abundant number, since it is smaller than the sum of its proper divisors (2376143718).

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

1631802042 is a wasteful number, since it uses less digits than its factorization.

1631802042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367067 (or 367064 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1631802042 is about 40395.5695838046. The cubic root of 1631802042 is about 1177.3054580086.

The spelling of 1631802042 in words is "one billion, six hundred thirty-one million, eight hundred two thousand, forty-two".