1936440025 has 27 divisors (see below), whose sum is σ = 2603946711. Its totient is φ = 1427874240.

The previous prime is 1936440019. The next prime is 1936440031. The reversal of 1936440025 is 5200446391.

It is a happy number.

The square root of 1936440025 is 44005.

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

It is an interprime number because it is at equal distance from previous prime (1936440019) and next prime (1936440031).

It can be written as a sum of positive squares in 13 ways, for example, as 634384969 + 1302055056 = 25187^2 + 36084^2 .

It is not a de Polignac number, because 1936440025 - 2⁹ = 1936439513 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, 2859987 + ... + 2860663.

Almost surely, 2^1936440025 is an apocalyptic number.

1936440025 is the 44005-th square number.

1936440025 is the 22003-rd centered octagonal number.

It is an amenable number.

1936440025 is a deficient number, since it is larger than the sum of its proper divisors (667506686).

1936440025 is an frugal number, since it uses more digits than its factorization.

1936440025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The cubic root of 1936440025 is about 1246.4303544750.

The spelling of 1936440025 in words is "one billion, nine hundred thirty-six million, four hundred forty thousand, twenty-five".