1042019605 has 8 divisors (see below), whose sum is σ = 1364098464. Its totient is φ = 757832400.

The previous prime is 1042019581. The next prime is 1042019609. The reversal of 1042019605 is 5069102401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1042019605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042019609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9472851 + ... + 9472960.

It is an arithmetic number, because the mean of its divisors is an integer number (170512308).

Almost surely, 2^1042019605 is an apocalyptic number.

It is an amenable number.

1042019605 is a deficient number, since it is larger than the sum of its proper divisors (322078859).

1042019605 is a wasteful number, since it uses less digits than its factorization.

1042019605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18945827.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1042019605 is about 32280.3284524802. The cubic root of 1042019605 is about 1013.8148072536.

The spelling of 1042019605 in words is "one billion, forty-two million, nineteen thousand, six hundred five".