42749892234 has 64 divisors (see below), whose sum is σ = 108739584000. Its totient is φ = 12195306864.

The previous prime is 42749892187. The next prime is 42749892239. The reversal of 42749892234 is 43229894724.

42749892234 is a `hidden beast` number, since 42 + 7 + 498 + 92 + 23 + 4 = 666.

42749892234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42749892234² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (42749892239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157167 + ... + 331965.

It is an arithmetic number, because the mean of its divisors is an integer number (1699056000).

Almost surely, 2^42749892234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42749892234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54369792000).

42749892234 is an abundant number, since it is smaller than the sum of its proper divisors (65989691766).

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

42749892234 is a wasteful number, since it uses less digits than its factorization.

42749892234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175464 (or 175458 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The spelling of 42749892234 in words is "forty-two billion, seven hundred forty-nine million, eight hundred ninety-two thousand, two hundred thirty-four".