202420340072 has 16 divisors (see below), whose sum is σ = 379545933060. Its totient is φ = 101208091264.

The previous prime is 202420340063. The next prime is 202420340081. The reversal of 202420340072 is 270043024202.

It is an interprime number because it is at equal distance from previous prime (202420340063) and next prime (202420340081).

It can be written as a sum of positive squares in 2 ways, for example, as 195422348356 + 6997991716 = 442066^2 + 83654^2 .

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, 202358 + ... + 667674.

Almost surely, 2^202420340072 is an apocalyptic number.

It is an amenable number.

202420340072 is a deficient number, since it is larger than the sum of its proper divisors (177125592988).

202420340072 is a wasteful number, since it uses less digits than its factorization.

202420340072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519700 (or 519696 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

Adding to 202420340072 its reverse (270043024202), we get a palindrome (472463364274).

The spelling of 202420340072 in words is "two hundred two billion, four hundred twenty million, three hundred forty thousand, seventy-two".