45945620 has 48 divisors (see below), whose sum is σ = 110732160. Its totient is φ = 15686784.

The previous prime is 45945617. The next prime is 45945631. The reversal of 45945620 is 2654954.

It is a happy number.

It is a super-2 number, since 2×45945620² = 4221999994368800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42446 + ... + 43514.

It is an arithmetic number, because the mean of its divisors is an integer number (2306920).

Almost surely, 2^45945620 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 45945620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55366080).

45945620 is an abundant number, since it is smaller than the sum of its proper divisors (64786540).

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

45945620 is a wasteful number, since it uses less digits than its factorization.

45945620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 45945620 is about 6778.3198508185. The cubic root of 45945620 is about 358.1635385694.

The spelling of 45945620 in words is "forty-five million, nine hundred forty-five thousand, six hundred twenty".