420302401040 has 40 divisors (see below), whose sum is σ = 977960257728. Its totient is φ = 167990693760.

The previous prime is 420302400997. The next prime is 420302401063. The reversal of 420302401040 is 40104203024.

It is a tau number, because it is divible by the number of its divisors (40).

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

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, 1931492 + ... + 2138051.

Almost surely, 2^420302401040 is an apocalyptic number.

420302401040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420302401040 is an abundant number, since it is smaller than the sum of its proper divisors (557657856688).

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

420302401040 is a wasteful number, since it uses less digits than its factorization.

420302401040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070847 (or 4070841 counting only the distinct ones).

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

Adding to 420302401040 its reverse (40104203024), we get a palindrome (460406604064).

The spelling of 420302401040 in words is "four hundred twenty billion, three hundred two million, four hundred one thousand, forty".