1802919942 has 24 divisors (see below), whose sum is σ = 4011904416. Its totient is φ = 584730576.

The previous prime is 1802919919. The next prime is 1802919947. The reversal of 1802919942 is 2499192081.

It is a super-2 number, since 2×1802919942² = 6501040634522566728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802919947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1352878 + ... + 1354209.

It is an arithmetic number, because the mean of its divisors is an integer number (167162684).

Almost surely, 2^1802919942 is an apocalyptic number.

1802919942 is an abundant number, since it is smaller than the sum of its proper divisors (2208984474).

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

1802919942 is a wasteful number, since it uses less digits than its factorization.

1802919942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707132 (or 2707129 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 1802919942 is about 42460.8047733436. The cubic root of 1802919942 is about 1217.0978095782.

The spelling of 1802919942 in words is "one billion, eight hundred two million, nine hundred nineteen thousand, nine hundred forty-two".