242430100040 has 32 divisors (see below), whose sum is σ = 577554063480. Its totient is φ = 91267802112.

The previous prime is 242430100007. The next prime is 242430100061. The reversal of 242430100040 is 40001034242.

It can be written as a sum of positive squares in 4 ways, for example, as 233662024996 + 8768075044 = 483386^2 + 93638^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 242430099985 and 242430100021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178256747 + ... + 178258106.

Almost surely, 2^242430100040 is an apocalyptic number.

242430100040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242430100040 is an abundant number, since it is smaller than the sum of its proper divisors (335123963440).

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

242430100040 is a wasteful number, since it uses less digits than its factorization.

242430100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356514881 (or 356514877 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 242430100040 its reverse (40001034242), we get a palindrome (282431134282).

The spelling of 242430100040 in words is "two hundred forty-two billion, four hundred thirty million, one hundred thousand, forty".