420062702640 has 160 divisors (see below), whose sum is σ = 1491677669376. Its totient is φ = 95791395840.

The previous prime is 420062702639. The next prime is 420062702743. The reversal of 420062702640 is 46207260024.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434014 + ... + 1014146.

Almost surely, 2^420062702640 is an apocalyptic number.

420062702640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420062702640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745838834688).

420062702640 is an abundant number, since it is smaller than the sum of its proper divisors (1071614966736).

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

420062702640 is a wasteful number, since it uses less digits than its factorization.

420062702640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580587 (or 580581 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

Adding to 420062702640 its reverse (46207260024), we get a palindrome (466269962664).

The spelling of 420062702640 in words is "four hundred twenty billion, sixty-two million, seven hundred two thousand, six hundred forty".