1000421552 has 20 divisors (see below), whose sum is σ = 2087418480. Its totient is φ = 461732928.

The previous prime is 1000421489. The next prime is 1000421561. The reversal of 1000421552 is 2551240001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2404652 + ... + 2405067.

It is an arithmetic number, because the mean of its divisors is an integer number (104370924).

Almost surely, 2^1000421552 is an apocalyptic number.

It is an amenable number.

1000421552 is an abundant number, since it is smaller than the sum of its proper divisors (1086996928).

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

1000421552 is a wasteful number, since it uses less digits than its factorization.

1000421552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809740 (or 4809734 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1000421552 is about 31629.4412217478. The cubic root of 1000421552 is about 1000.1404975928.

Adding to 1000421552 its reverse (2551240001), we get a palindrome (3551661553).

The spelling of 1000421552 in words is "one billion, four hundred twenty-one thousand, five hundred fifty-two".