1204640042 has 8 divisors (see below), whose sum is σ = 1885523616. Its totient is φ = 576132172.

The previous prime is 1204640027. The next prime is 1204640069. The reversal of 1204640042 is 2400464021.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13093868 + ... + 13093959.

It is an arithmetic number, because the mean of its divisors is an integer number (235690452).

Almost surely, 2^1204640042 is an apocalyptic number.

1204640042 is a deficient number, since it is larger than the sum of its proper divisors (680883574).

1204640042 is a wasteful number, since it uses less digits than its factorization.

1204640042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26187852.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1204640042 is about 34707.9247723052. The cubic root of 1204640042 is about 1064.0264688282.

The spelling of 1204640042 in words is "one billion, two hundred four million, six hundred forty thousand, forty-two".