2528639046 has 36 divisors (see below), whose sum is σ = 5684125356. Its totient is φ = 842510160.

The previous prime is 2528639023. The next prime is 2528639059. The reversal of 2528639046 is 6409368252.

2528639046 is a `hidden beast` number, since 2 + 5 + 2 + 8 + 639 + 0 + 4 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2528638992 and 2528639010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1107426 + ... + 1109706.

It is an arithmetic number, because the mean of its divisors is an integer number (157892371).

Almost surely, 2^2528639046 is an apocalyptic number.

2528639046 is an abundant number, since it is smaller than the sum of its proper divisors (3155486310).

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

2528639046 is an frugal number, since it uses more digits than its factorization.

2528639046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 2528639046 is about 50285.5749295959. The cubic root of 2528639046 is about 1362.3716988971.

The spelling of 2528639046 in words is "two billion, five hundred twenty-eight million, six hundred thirty-nine thousand, forty-six".