20030400402 has 16 divisors (see below), whose sum is σ = 41802575040. Its totient is φ = 6386504432.

The previous prime is 20030400367. The next prime is 20030400437. The reversal of 20030400402 is 20400403002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20030400367) and next prime (20030400437).

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, 72573777 + ... + 72574052.

It is an arithmetic number, because the mean of its divisors is an integer number (2612660940).

Almost surely, 2^20030400402 is an apocalyptic number.

20030400402 is an abundant number, since it is smaller than the sum of its proper divisors (21772174638).

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

20030400402 is a wasteful number, since it uses less digits than its factorization.

20030400402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145147857.

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 20030400402 its reverse (20400403002), we get a palindrome (40430803404).

The spelling of 20030400402 in words is "twenty billion, thirty million, four hundred thousand, four hundred two".