42729948 has 36 divisors (see below), whose sum is σ = 108407208. Its totient is φ = 14191200.

The previous prime is 42729943. The next prime is 42729949. The reversal of 42729948 is 84992724.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42729941) 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, 8523 + ... + 12573.

Almost surely, 2^42729948 is an apocalyptic number.

It is an amenable number.

42729948 is an abundant number, since it is smaller than the sum of its proper divisors (65677260).

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

42729948 is a wasteful number, since it uses less digits than its factorization.

42729948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354 (or 4349 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 42729948 is about 6536.8148206906. The cubic root of 42729948 is about 349.6048547345.

The spelling of 42729948 in words is "forty-two million, seven hundred twenty-nine thousand, nine hundred forty-eight".