42149516 has 6 divisors (see below), whose sum is σ = 73761660. Its totient is φ = 21074756.

The previous prime is 42149509. The next prime is 42149521. The reversal of 42149516 is 61594124.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5268686 + ... + 5268693.

It is an arithmetic number, because the mean of its divisors is an integer number (12293610).

Almost surely, 2^42149516 is an apocalyptic number.

It is an amenable number.

42149516 is a deficient number, since it is larger than the sum of its proper divisors (31612144).

42149516 is a wasteful number, since it uses less digits than its factorization.

42149516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10537383 (or 10537381 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 42149516 is about 6492.2658602371. The cubic root of 42149516 is about 348.0146534544.

The spelling of 42149516 in words is "forty-two million, one hundred forty-nine thousand, five hundred sixteen".