32405501040 has 160 divisors (see below), whose sum is σ = 109725048576. Its totient is φ = 7846164480.

The previous prime is 32405501027. The next prime is 32405501041. The reversal of 32405501040 is 4010550423.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 32405501040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32405501041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2255319 + ... + 2269641.

Almost surely, 2^32405501040 is an apocalyptic number.

32405501040 is a gapful number since it is divisible by the number (30) 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 32405501040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54862524288).

32405501040 is an abundant number, since it is smaller than the sum of its proper divisors (77319547536).

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

32405501040 is a wasteful number, since it uses less digits than its factorization.

32405501040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15207 (or 15201 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 32405501040 in words is "thirty-two billion, four hundred five million, five hundred one thousand, forty".