42153982 has 32 divisors (see below), whose sum is σ = 72569952. Its totient is φ = 18192384.

The previous prime is 42153961. The next prime is 42153983. The reversal of 42153982 is 28935124.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42153983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124918 + ... + 125254.

It is an arithmetic number, because the mean of its divisors is an integer number (2267811).

Almost surely, 2^42153982 is an apocalyptic number.

42153982 is a deficient number, since it is larger than the sum of its proper divisors (30415970).

42153982 is a wasteful number, since it uses less digits than its factorization.

42153982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652.

The product of its digits is 17280, while the sum is 34.

The square root of 42153982 is about 6492.6097988405. The cubic root of 42153982 is about 348.0269444500.

The spelling of 42153982 in words is "forty-two million, one hundred fifty-three thousand, nine hundred eighty-two".