742143924 has 24 divisors (see below), whose sum is σ = 1924077120. Its totient is φ = 247381272.

The previous prime is 742143893. The next prime is 742143929. The reversal of 742143924 is 429341247.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742143929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3435744 + ... + 3435959.

It is an arithmetic number, because the mean of its divisors is an integer number (80169880).

Almost surely, 2^742143924 is an apocalyptic number.

It is an amenable number.

742143924 is an abundant number, since it is smaller than the sum of its proper divisors (1181933196).

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

742143924 is a wasteful number, since it uses less digits than its factorization.

742143924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6871716 (or 6871708 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 742143924 is about 27242.3186237882. The cubic root of 742143924 is about 905.3768356288.

The spelling of 742143924 in words is "seven hundred forty-two million, one hundred forty-three thousand, nine hundred twenty-four".