42149370 has 16 divisors (see below), whose sum is σ = 101158560. Its totient is φ = 11239824.

The previous prime is 42149369. The next prime is 42149377. The reversal of 42149370 is 7394124.

It is a happy number.

42149370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1404979 = 42149370 / (4 + 2 + 1 + 4 + 9 + 3 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (42149377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702460 + ... + 702519.

It is an arithmetic number, because the mean of its divisors is an integer number (6322410).

Almost surely, 2^42149370 is an apocalyptic number.

42149370 is an abundant number, since it is smaller than the sum of its proper divisors (59009190).

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

42149370 is a wasteful number, since it uses less digits than its factorization.

42149370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404989.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 42149370 is about 6492.2546160791. The cubic root of 42149370 is about 348.0142516293.

The spelling of 42149370 in words is "forty-two million, one hundred forty-nine thousand, three hundred seventy".