40434550 has 24 divisors (see below), whose sum is σ = 80994816. Its totient is φ = 14929440.

The previous prime is 40434539. The next prime is 40434553. The reversal of 40434550 is 5543404.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30454 + ... + 31753.

It is an arithmetic number, because the mean of its divisors is an integer number (3374784).

Almost surely, 2^40434550 is an apocalyptic number.

40434550 is an abundant number, since it is smaller than the sum of its proper divisors (40560266).

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

40434550 is a wasteful number, since it uses less digits than its factorization.

40434550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62232 (or 62227 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 40434550 is about 6358.8167138234. The cubic root of 40434550 is about 343.2291815501.

Adding to 40434550 its reverse (5543404), we get a palindrome (45977954).

The spelling of 40434550 in words is "forty million, four hundred thirty-four thousand, five hundred fifty".