428741633740 has 72 divisors (see below), whose sum is σ = 1069638816960. Its totient is φ = 143869517568.

The previous prime is 428741633653. The next prime is 428741633783. The reversal of 428741633740 is 47336147824.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4608105 + ... + 4700224.

It is an arithmetic number, because the mean of its divisors is an integer number (14856094680).

Almost surely, 2^428741633740 is an apocalyptic number.

It is an amenable number.

428741633740 is an abundant number, since it is smaller than the sum of its proper divisors (640897183220).

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

428741633740 is a wasteful number, since it uses less digits than its factorization.

428741633740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9308399 (or 9308390 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 49.

The spelling of 428741633740 in words is "four hundred twenty-eight billion, seven hundred forty-one million, six hundred thirty-three thousand, seven hundred forty".