42519916 has 24 divisors (see below), whose sum is σ = 80327520. Its totient is φ = 19633152.

The previous prime is 42519877. The next prime is 42519923. The reversal of 42519916 is 61991524.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5301 + ... + 10636.

It is an arithmetic number, because the mean of its divisors is an integer number (3346980).

Almost surely, 2^42519916 is an apocalyptic number.

42519916 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

42519916 is a deficient number, since it is larger than the sum of its proper divisors (37807604).

42519916 is a wasteful number, since it uses less digits than its factorization.

42519916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15993 (or 15991 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 42519916 is about 6520.7297137667. The cubic root of 42519916 is about 349.0311053466.

The spelling of 42519916 in words is "forty-two million, five hundred nineteen thousand, nine hundred sixteen".