45947742 has 16 divisors (see below), whose sum is σ = 91999632. Its totient is φ = 15298560.

The previous prime is 45947731. The next prime is 45947749. The reversal of 45947742 is 24774954.

It is a super-2 number, since 2×45947742² = 4222389989797128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45947694 and 45947703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45947749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142 + ... + 9822.

It is an arithmetic number, because the mean of its divisors is an integer number (5749977).

Almost surely, 2^45947742 is an apocalyptic number.

45947742 is an abundant number, since it is smaller than the sum of its proper divisors (46051890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45947742 is a wasteful number, since it uses less digits than its factorization.

45947742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683.

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

The square root of 45947742 is about 6778.4763774760. The cubic root of 45947742 is about 358.1690524162.

The spelling of 45947742 in words is "forty-five million, nine hundred forty-seven thousand, seven hundred forty-two".