45651732 has 72 divisors (see below), whose sum is σ = 131229504. Its totient is φ = 12273408.

The previous prime is 45651731. The next prime is 45651761. The reversal of 45651732 is 23715654.

It is a junction number, because it is equal to n+sod(n) for n = 45651693 and 45651702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45651731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7713 + ... + 12279.

It is an arithmetic number, because the mean of its divisors is an integer number (1822632).

Almost surely, 2^45651732 is an apocalyptic number.

45651732 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45651732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65614752).

45651732 is an abundant number, since it is smaller than the sum of its proper divisors (85577772).

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

45651732 is a wasteful number, since it uses less digits than its factorization.

45651732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605 (or 4596 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 45651732 is about 6756.6065447087. The cubic root of 45651732 is about 357.3982483826.

The spelling of 45651732 in words is "forty-five million, six hundred fifty-one thousand, seven hundred thirty-two".