1802039442 has 32 divisors (see below), whose sum is σ = 4214740992. Its totient is φ = 502894224.

The previous prime is 1802039431. The next prime is 1802039461. The reversal of 1802039442 is 2449302081.

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, 497098 + ... + 500709.

It is an arithmetic number, because the mean of its divisors is an integer number (131710656).

Almost surely, 2^1802039442 is an apocalyptic number.

1802039442 is an abundant number, since it is smaller than the sum of its proper divisors (2412701550).

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

1802039442 is a wasteful number, since it uses less digits than its factorization.

1802039442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997862.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1802039442 is about 42450.4351214449. The cubic root of 1802039442 is about 1216.8996441651.

The spelling of 1802039442 in words is "one billion, eight hundred two million, thirty-nine thousand, four hundred forty-two".