45475542 has 48 divisors (see below), whose sum is σ = 113162400. Its totient is φ = 12928896.

The previous prime is 45475541. The next prime is 45475559. The reversal of 45475542 is 24557454.

It is a happy number.

45475542 is a `hidden beast` number, since 45 + 4 + 75 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 45475497 and 45475506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45475541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28584 + ... + 30132.

It is an arithmetic number, because the mean of its divisors is an integer number (2357550).

Almost surely, 2^45475542 is an apocalyptic number.

45475542 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45475542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56581200).

45475542 is an abundant number, since it is smaller than the sum of its proper divisors (67686858).

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

45475542 is a wasteful number, since it uses less digits than its factorization.

45475542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797 (or 1794 counting only the distinct ones).

The product of its digits is 112000, while the sum is 36.

The square root of 45475542 is about 6743.5555903396. Note that the first 4 decimals coincide. The cubic root of 45475542 is about 356.9378702228.

The spelling of 45475542 in words is "forty-five million, four hundred seventy-five thousand, five hundred forty-two".