45148940 has 96 divisors (see below), whose sum is σ = 109771200. Its totient is φ = 15482880.

The previous prime is 45148933. The next prime is 45148963. The reversal of 45148940 is 4984154.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 45148940.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187220 + ... + 187460.

It is an arithmetic number, because the mean of its divisors is an integer number (1143450).

Almost surely, 2^45148940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45148940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54885600).

45148940 is an abundant number, since it is smaller than the sum of its proper divisors (64622260).

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

45148940 is a wasteful number, since it uses less digits than its factorization.

45148940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 45148940 is about 6719.2960940860. The cubic root of 45148940 is about 356.0813158523.

The spelling of 45148940 in words is "forty-five million, one hundred forty-eight thousand, nine hundred forty".