2405705272 has 16 divisors (see below), whose sum is σ = 4513041000. Its totient is φ = 1202227680.

The previous prime is 2405705243. The next prime is 2405705279. The reversal of 2405705272 is 2725075042.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405705279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61554 + ... + 92737.

Almost surely, 2^2405705272 is an apocalyptic number.

It is an amenable number.

2405705272 is a deficient number, since it is larger than the sum of its proper divisors (2107335728).

2405705272 is a wasteful number, since it uses less digits than its factorization.

2405705272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156246 (or 156242 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 2405705272 is about 49047.9894796922. The cubic root of 2405705272 is about 1339.9259764559.

The spelling of 2405705272 in words is "two billion, four hundred five million, seven hundred five thousand, two hundred seventy-two".