1210442040 has 96 divisors (see below), whose sum is σ = 3938248080. Its totient is φ = 322430976.

The previous prime is 1210442011. The next prime is 1210442059. The reversal of 1210442040 is 402440121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 599112 + ... + 601128.

Almost surely, 2^1210442040 is an apocalyptic number.

1210442040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210442040 is an abundant number, since it is smaller than the sum of its proper divisors (2727806040).

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

1210442040 is a wasteful number, since it uses less digits than its factorization.

1210442040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701 (or 3694 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1210442040 is about 34791.4075599134. The cubic root of 1210442040 is about 1065.7319837264.

Adding to 1210442040 its reverse (402440121), we get a palindrome (1612882161).

The spelling of 1210442040 in words is "one billion, two hundred ten million, four hundred forty-two thousand, forty".