45447402 has 192 divisors, whose sum is σ = 132378624. Its totient is φ = 10200960.

The previous prime is 45447401. The next prime is 45447407. The reversal of 45447402 is 20474454.

It is a self number, because there is not a number n which added to its sum of digits gives 45447402.

It is not an unprimeable number, because it can be changed into a prime (45447401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 966943 + ... + 966989.

It is an arithmetic number, because the mean of its divisors is an integer number (689472).

Almost surely, 2^45447402 is an apocalyptic number.

45447402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45447402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66189312).

45447402 is an abundant number, since it is smaller than the sum of its proper divisors (86931222).

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

45447402 is a wasteful number, since it uses less digits than its factorization.

45447402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 45447402 is about 6741.4688310486. The cubic root of 45447402 is about 356.8642313412.

The spelling of 45447402 in words is "forty-five million, four hundred forty-seven thousand, four hundred two".