403040871025 has 27 divisors (see below), whose sum is σ = 541227215361. Its totient is φ = 297599708640.

The previous prime is 403040871011. The next prime is 403040871031. The reversal of 403040871025 is 520178040304.

The square root of 403040871025 is 634855.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 103884380721 + 299156490304 = 322311^2 + 546952^2 .

It is not a de Polignac number, because 403040871025 - 2¹⁵ = 403040838257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 41260692 + ... + 41270458.

Almost surely, 2^403040871025 is an apocalyptic number.

403040871025 is the 634855-th square number.

403040871025 is the 317428-th centered octagonal number.

It is an amenable number.

403040871025 is a deficient number, since it is larger than the sum of its proper divisors (138186344336).

403040871025 is an frugal number, since it uses more digits than its factorization.

403040871025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19570 (or 9785 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 403040871025 in words is "four hundred three billion, forty million, eight hundred seventy-one thousand, twenty-five".