201402420040 has 32 divisors (see below), whose sum is σ = 453205314360. Its totient is φ = 80552102400.

The previous prime is 201402420017. The next prime is 201402420041. The reversal of 201402420040 is 40024204102.

It can be written as a sum of positive squares in 4 ways, for example, as 168098360004 + 33304060036 = 409998^2 + 182494^2 .

It is not an unprimeable number, because it can be changed into a prime (201402420041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97210 + ... + 642070.

Almost surely, 2^201402420040 is an apocalyptic number.

201402420040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201402420040 is an abundant number, since it is smaller than the sum of its proper divisors (251802894320).

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

201402420040 is a wasteful number, since it uses less digits than its factorization.

201402420040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554113 (or 554109 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 201402420040 its reverse (40024204102), we get a palindrome (241426624142).

The spelling of 201402420040 in words is "two hundred one billion, four hundred two million, four hundred twenty thousand, forty".