1204042040 has 16 divisors (see below), whose sum is σ = 2709094680. Its totient is φ = 481616800.

The previous prime is 1204042001. The next prime is 1204042061. The reversal of 1204042040 is 402404021.

It is a congruent number.

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, 15050486 + ... + 15050565.

Almost surely, 2^1204042040 is an apocalyptic number.

1204042040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204042040 is an abundant number, since it is smaller than the sum of its proper divisors (1505052640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1204042040 is a wasteful number, since it uses less digits than its factorization.

1204042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30101062 (or 30101058 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1204042040 is about 34699.3089268360. The cubic root of 1204042040 is about 1063.8503732723.

Adding to 1204042040 its reverse (402404021), we get a palindrome (1606446061).

The spelling of 1204042040 in words is "one billion, two hundred four million, forty-two thousand, forty".