45471672 has 64 divisors (see below), whose sum is σ = 127353600. Its totient is φ = 15032160.

The previous prime is 45471661. The next prime is 45471709. The reversal of 45471672 is 27617454.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 27493 + ... + 29099.

It is an arithmetic number, because the mean of its divisors is an integer number (1989900).

Almost surely, 2^45471672 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 45471672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63676800).

45471672 is an abundant number, since it is smaller than the sum of its proper divisors (81881928).

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

45471672 is a wasteful number, since it uses less digits than its factorization.

45471672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753 (or 1743 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 45471672 is about 6743.2686436179. The cubic root of 45471672 is about 356.9277447159.

The spelling of 45471672 in words is "forty-five million, four hundred seventy-one thousand, six hundred seventy-two".