45149874 has 96 divisors (see below), whose sum is σ = 119771136. Its totient is φ = 11198880.

The previous prime is 45149873. The next prime is 45149887. The reversal of 45149874 is 47894154.

It is a super-2 number, since 2×45149874² = 4077022244431752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45149873) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74079 + ... + 74685.

It is an arithmetic number, because the mean of its divisors is an integer number (1247616).

Almost surely, 2^45149874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45149874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59885568).

45149874 is an abundant number, since it is smaller than the sum of its proper divisors (74621262).

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

45149874 is a wasteful number, since it uses less digits than its factorization.

45149874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 653 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 45149874 is about 6719.3655950543. The cubic root of 45149874 is about 356.0837712636.

The spelling of 45149874 in words is "forty-five million, one hundred forty-nine thousand, eight hundred seventy-four".