1026529040 has 40 divisors (see below), whose sum is σ = 2463675648. Its totient is φ = 397365120.

The previous prime is 1026529019. The next prime is 1026529057. The reversal of 1026529040 is 409256201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1026528994 and 1026529012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204482 + ... + 209441.

Almost surely, 2^1026529040 is an apocalyptic number.

1026529040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026529040 is an abundant number, since it is smaller than the sum of its proper divisors (1437146608).

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

1026529040 is a wasteful number, since it uses less digits than its factorization.

1026529040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413967 (or 413961 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1026529040 is about 32039.4918811145. The cubic root of 1026529040 is about 1008.7659469765.

The spelling of 1026529040 in words is "one billion, twenty-six million, five hundred twenty-nine thousand, forty".