1543422942 has 48 divisors (see below), whose sum is σ = 3498610752. Its totient is φ = 491235840.

The previous prime is 1543422941. The next prime is 1543422943. The reversal of 1543422942 is 2492243451.

It is a happy number.

1543422942 is a `hidden beast` number, since 1 + 543 + 4 + 22 + 94 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1543422941) and next prime (1543422943).

It is a junction number, because it is equal to n+sod(n) for n = 1543422897 and 1543422906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543422941) 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, 12438 + ... + 56934.

It is an arithmetic number, because the mean of its divisors is an integer number (72887724).

Almost surely, 2^1543422942 is an apocalyptic number.

1543422942 is an abundant number, since it is smaller than the sum of its proper divisors (1955187810).

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

1543422942 is a wasteful number, since it uses less digits than its factorization.

1543422942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44593 (or 44590 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1543422942 is about 39286.4218528489. The cubic root of 1543422942 is about 1155.6553047515.

The spelling of 1543422942 in words is "one billion, five hundred forty-three million, four hundred twenty-two thousand, nine hundred forty-two".