1201422040 has 64 divisors (see below), whose sum is σ = 3327024960. Its totient is φ = 380229120.

The previous prime is 1201422007. The next prime is 1201422049. The reversal of 1201422040 is 402241021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201422049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161391 + ... + 168670.

It is an arithmetic number, because the mean of its divisors is an integer number (51984765).

Almost surely, 2^1201422040 is an apocalyptic number.

1201422040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201422040 is an abundant number, since it is smaller than the sum of its proper divisors (2125602920).

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

1201422040 is a wasteful number, since it uses less digits than its factorization.

1201422040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330092 (or 330088 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1201422040 is about 34661.5354535831. The cubic root of 1201422040 is about 1063.0781654232.

Adding to 1201422040 its reverse (402241021), we get a palindrome (1603663061).

The spelling of 1201422040 in words is "one billion, two hundred one million, four hundred twenty-two thousand, forty".