420401373040 has 80 divisors (see below), whose sum is σ = 1066465313280. Its totient is φ = 152848200960.

The previous prime is 420401372983. The next prime is 420401373103. The reversal of 420401373040 is 40373104024.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5841757 + ... + 5913283.

It is an arithmetic number, because the mean of its divisors is an integer number (13330816416).

Almost surely, 2^420401373040 is an apocalyptic number.

420401373040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420401373040 is an abundant number, since it is smaller than the sum of its proper divisors (646063940240).

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

420401373040 is a wasteful number, since it uses less digits than its factorization.

420401373040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78230 (or 78224 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 420401373040 its reverse (40373104024), we get a palindrome (460774477064).

The spelling of 420401373040 in words is "four hundred twenty billion, four hundred one million, three hundred seventy-three thousand, forty".