40113450 has 72 divisors (see below), whose sum is σ = 116078508. Its totient is φ = 9872640.

The previous prime is 40113413. The next prime is 40113461. The reversal of 40113450 is 5431104.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 385641 + 39727809 = 621^2 + 6303^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2422 + ... + 9278.

Almost surely, 2^40113450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40113450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58039254).

40113450 is an abundant number, since it is smaller than the sum of its proper divisors (75965058).

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

40113450 is a wasteful number, since it uses less digits than its factorization.

40113450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888 (or 6880 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40113450 is about 6333.5179797645. The cubic root of 40113450 is about 342.3182120884.

Adding to 40113450 its reverse (5431104), we get a palindrome (45544554).

The spelling of 40113450 in words is "forty million, one hundred thirteen thousand, four hundred fifty".