45919146 has 64 divisors (see below), whose sum is σ = 116137728. Its totient is φ = 11778048.

The previous prime is 45919087. The next prime is 45919177. The reversal of 45919146 is 64191954.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

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, 19066 + ... + 21338.

It is an arithmetic number, because the mean of its divisors is an integer number (1814652).

Almost surely, 2^45919146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45919146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58068864).

45919146 is an abundant number, since it is smaller than the sum of its proper divisors (70218582).

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

45919146 is a wasteful number, since it uses less digits than its factorization.

45919146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335.

The product of its digits is 38880, while the sum is 39.

The square root of 45919146 is about 6776.3667256134. The cubic root of 45919146 is about 358.0947337280.

The spelling of 45919146 in words is "forty-five million, nine hundred nineteen thousand, one hundred forty-six".