40164450 has 24 divisors (see below), whose sum is σ = 99608208. Its totient is φ = 10710480.

The previous prime is 40164433. The next prime is 40164457. The reversal of 40164450 is 5446104.

It is a super-2 number, since 2×40164450² = 3226366087605000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40164450.

It is not an unprimeable number, because it can be changed into a prime (40164457) 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, 133732 + ... + 134031.

It is an arithmetic number, because the mean of its divisors is an integer number (4150342).

Almost surely, 2^40164450 is an apocalyptic number.

40164450 is an abundant number, since it is smaller than the sum of its proper divisors (59443758).

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

40164450 is a wasteful number, since it uses less digits than its factorization.

40164450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267778 (or 267773 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40164450 is about 6337.5428992631. The cubic root of 40164450 is about 342.4632244244.

The spelling of 40164450 in words is "forty million, one hundred sixty-four thousand, four hundred fifty".