45348138 has 72 divisors (see below), whose sum is σ = 110545344. Its totient is φ = 13419120.

The previous prime is 45348137. The next prime is 45348151. The reversal of 45348138 is 83184354.

It is not an unprimeable number, because it can be changed into a prime (45348137) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 102145 + ... + 102587.

It is an arithmetic number, because the mean of its divisors is an integer number (1535352).

Almost surely, 2^45348138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45348138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55272672).

45348138 is an abundant number, since it is smaller than the sum of its proper divisors (65197206).

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

45348138 is a wasteful number, since it uses less digits than its factorization.

45348138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 506 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 45348138 is about 6734.1026128208. The cubic root of 45348138 is about 356.6042268002.

The spelling of 45348138 in words is "forty-five million, three hundred forty-eight thousand, one hundred thirty-eight".