42152649 has 48 divisors (see below), whose sum is σ = 72164736. Its totient is φ = 21415680.

The previous prime is 42152641. The next prime is 42152651. The reversal of 42152649 is 94625124.

It is not a de Polignac number, because 42152649 - 2³ = 42152641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (42152641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134517 + ... + 134829.

It is an arithmetic number, because the mean of its divisors is an integer number (1503432).

Almost surely, 2^42152649 is an apocalyptic number.

It is an amenable number.

42152649 is a deficient number, since it is larger than the sum of its proper divisors (30012087).

42152649 is a wasteful number, since it uses less digits than its factorization.

42152649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 387 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 42152649 is about 6492.5071428532. The cubic root of 42152649 is about 348.0232759567.

The spelling of 42152649 in words is "forty-two million, one hundred fifty-two thousand, six hundred forty-nine".