45942747 has 4 divisors (see below), whose sum is σ = 61257000. Its totient is φ = 30628496.

The previous prime is 45942739. The next prime is 45942763. The reversal of 45942747 is 74724954.

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

It is a cyclic number.

It is not a de Polignac number, because 45942747 - 2³ = 45942739 is a prime.

It is a super-2 number, since 2×45942747² = 4221472003812018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45942699 and 45942708.

It is not an unprimeable number, because it can be changed into a prime (45942727) 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, 7657122 + ... + 7657127.

It is an arithmetic number, because the mean of its divisors is an integer number (15314250).

Almost surely, 2^45942747 is an apocalyptic number.

45942747 is a deficient number, since it is larger than the sum of its proper divisors (15314253).

45942747 is a wasteful number, since it uses less digits than its factorization.

45942747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15314252.

The product of its digits is 282240, while the sum is 42.

The square root of 45942747 is about 6778.1079218319. The cubic root of 45942747 is about 358.1560730389.

The spelling of 45942747 in words is "forty-five million, nine hundred forty-two thousand, seven hundred forty-seven".