45148840 has 32 divisors (see below), whose sum is σ = 110820960. Its totient is φ = 16417600.

The previous prime is 45148813. The next prime is 45148841. The reversal of 45148840 is 4884154.

It is a junction number, because it is equal to n+sod(n) for n = 45148796 and 45148805.

It is not an unprimeable number, because it can be changed into a prime (45148841) 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, 50866 + ... + 51745.

It is an arithmetic number, because the mean of its divisors is an integer number (3463155).

Almost surely, 2^45148840 is an apocalyptic number.

45148840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45148840 is an abundant number, since it is smaller than the sum of its proper divisors (65672120).

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

45148840 is a wasteful number, since it uses less digits than its factorization.

45148840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102633 (or 102629 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 45148840 is about 6719.2886528263. The cubic root of 45148840 is about 356.0810529583.

The spelling of 45148840 in words is "forty-five million, one hundred forty-eight thousand, eight hundred forty".