863472942 has 24 divisors (see below), whose sum is σ = 1980909216. Its totient is φ = 270893376.

The previous prime is 863472887. The next prime is 863472949. The reversal of 863472942 is 249274368.

863472942 is a `hidden beast` number, since 8 + 634 + 7 + 2 + 9 + 4 + 2 = 666.

It is a super-2 number, since 2×863472942² = 1491171043132270728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863472949) 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, 1410598 + ... + 1411209.

It is an arithmetic number, because the mean of its divisors is an integer number (82537884).

Almost surely, 2^863472942 is an apocalyptic number.

863472942 is an abundant number, since it is smaller than the sum of its proper divisors (1117436274).

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

863472942 is a wasteful number, since it uses less digits than its factorization.

863472942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821832 (or 2821829 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 863472942 is about 29384.9101070601. The cubic root of 863472942 is about 952.2469222442.

The spelling of 863472942 in words is "eight hundred sixty-three million, four hundred seventy-two thousand, nine hundred forty-two".