420029651904 has 56 divisors (see below), whose sum is σ = 1126552169040. Its totient is φ = 138091935744.

The previous prime is 420029651903. The next prime is 420029651947. The reversal of 420029651904 is 409156920024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420029651903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14969919 + ... + 14997950.

Almost surely, 2^420029651904 is an apocalyptic number.

It is an amenable number.

420029651904 is an abundant number, since it is smaller than the sum of its proper divisors (706522517136).

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

420029651904 is a wasteful number, since it uses less digits than its factorization.

420029651904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29967957 (or 29967947 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 420029651904 in words is "four hundred twenty billion, twenty-nine million, six hundred fifty-one thousand, nine hundred four".