200402402440 has 16 divisors (see below), whose sum is σ = 450905405580. Its totient is φ = 80160960960.

The previous prime is 200402402399. The next prime is 200402402477. The reversal of 200402402440 is 44204204002.

It can be written as a sum of positive squares in 2 ways, for example, as 198957034116 + 1445368324 = 446046^2 + 38018^2 .

It is a super-2 number, since 2×200402402440² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505029991 + ... + 2505030070.

Almost surely, 2^200402402440 is an apocalyptic number.

200402402440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200402402440 is an abundant number, since it is smaller than the sum of its proper divisors (250503003140).

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

200402402440 is a wasteful number, since it uses less digits than its factorization.

200402402440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010060072 (or 5010060068 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 200402402440 its reverse (44204204002), we get a palindrome (244606606442).

The spelling of 200402402440 in words is "two hundred billion, four hundred two million, four hundred two thousand, four hundred forty".