45494946 has 96 divisors (see below), whose sum is σ = 119927808. Its totient is φ = 12655440.

The previous prime is 45494927. The next prime is 45494947. The reversal of 45494946 is 64949454.

It is a super-2 number, since 2×45494946² = 4139580223085832, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45494947) 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, 146131 + ... + 146441.

It is an arithmetic number, because the mean of its divisors is an integer number (1249248).

Almost surely, 2^45494946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45494946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59963904).

45494946 is an abundant number, since it is smaller than the sum of its proper divisors (74432862).

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

45494946 is a wasteful number, since it uses less digits than its factorization.

45494946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 366 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 45494946 is about 6744.9941438077. The cubic root of 45494946 is about 356.9886303843.

The spelling of 45494946 in words is "forty-five million, four hundred ninety-four thousand, nine hundred forty-six".