1421442040 has 32 divisors (see below), whose sum is σ = 3199376880. Its totient is φ = 568375552.

The previous prime is 1421442037. The next prime is 1421442083. The reversal of 1421442040 is 402441241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167172 + ... + 175468.

Almost surely, 2^1421442040 is an apocalyptic number.

1421442040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421442040 is an abundant number, since it is smaller than the sum of its proper divisors (1777934840).

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

1421442040 is a wasteful number, since it uses less digits than its factorization.

1421442040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12591 (or 12587 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1421442040 is about 37702.0163916998. The cubic root of 1421442040 is about 1124.3712147152.

Adding to 1421442040 its reverse (402441241), we get a palindrome (1823883281).

The spelling of 1421442040 in words is "one billion, four hundred twenty-one million, four hundred forty-two thousand, forty".