1025627428 has 18 divisors (see below), whose sum is σ = 2087884806. Its totient is φ = 439554528.

The previous prime is 1025627419. The next prime is 1025627453. The reversal of 1025627428 is 8247265201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 518837284 + 506790144 = 22778^2 + 22512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2616201 + ... + 2616592.

Almost surely, 2^1025627428 is an apocalyptic number.

It is an amenable number.

1025627428 is an abundant number, since it is smaller than the sum of its proper divisors (1062257378).

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

1025627428 is a wasteful number, since it uses less digits than its factorization.

1025627428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5232811 (or 5232802 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 1025627428 is about 32025.4184672113. The cubic root of 1025627428 is about 1008.4705236432.

The spelling of 1025627428 in words is "one billion, twenty-five million, six hundred twenty-seven thousand, four hundred twenty-eight".