45469440 has 108 divisors (see below), whose sum is σ = 157359384. Its totient is φ = 12122112.

The previous prime is 45469439. The next prime is 45469499. The reversal of 45469440 is 4496454.

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

It is a junction number, because it is equal to n+sod(n) for n = 45469395 and 45469404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9547 + ... + 13493.

Almost surely, 2^45469440 is an apocalyptic number.

45469440 is a gapful number since it is divisible by the number (40) 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 45469440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78679692).

45469440 is an abundant number, since it is smaller than the sum of its proper divisors (111889944).

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

45469440 is a wasteful number, since it uses less digits than its factorization.

45469440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974 (or 3957 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 45469440 is about 6743.1031432123. The cubic root of 45469440 is about 356.9219046274.

The spelling of 45469440 in words is "forty-five million, four hundred sixty-nine thousand, four hundred forty".