2407945 has 4 divisors (see below), whose sum is σ = 2889540. Its totient is φ = 1926352.

The previous prime is 2407943. The next prime is 2407963. The reversal of 2407945 is 5497042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 394384 + 2013561 = 628^2 + 1419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2407945 - 2¹ = 2407943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2407943) 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, 240790 + ... + 240799.

It is an arithmetic number, because the mean of its divisors is an integer number (722385).

2^2407945 is an apocalyptic number.

It is an amenable number.

2407945 is a deficient number, since it is larger than the sum of its proper divisors (481595).

2407945 is an equidigital number, since it uses as much as digits as its factorization.

2407945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481594.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2407945 is about 1551.7554575383. The cubic root of 2407945 is about 134.0341674215.

Adding to 2407945 its product of nonzero digits (10080), we get a square (2418025 = 1555²).

The spelling of 2407945 in words is "two million, four hundred seven thousand, nine hundred forty-five".