45908029440 has 1872 divisors, whose sum is σ = 220251140928. Its totient is φ = 8719958016.

The previous prime is 45908029439. The next prime is 45908029451. The reversal of 45908029440 is 4492080954.

45908029440 is a `hidden beast` number, since 45 + 90 + 80 + 2 + 9 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (1872).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1996001269 + ... + 1996001291.

It is an arithmetic number, because the mean of its divisors is an integer number (117655524).

Almost surely, 2^45908029440 is an apocalyptic number.

45908029440 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 45908029440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110125570464).

45908029440 is an abundant number, since it is smaller than the sum of its proper divisors (174343111488).

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

45908029440 is a wasteful number, since it uses less digits than its factorization.

45908029440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 45908029440 in words is "forty-five billion, nine hundred eight million, twenty-nine thousand, four hundred forty".