40440334 has 16 divisors (see below), whose sum is σ = 67964976. Its totient is φ = 17884800.

The previous prime is 40440319. The next prime is 40440347. The reversal of 40440334 is 43304404.

It is a happy number.

It is a super-2 number, since 2×40440334² = 3270841228063112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24027 + ... + 25654.

It is an arithmetic number, because the mean of its divisors is an integer number (4247811).

Almost surely, 2^40440334 is an apocalyptic number.

40440334 is a deficient number, since it is larger than the sum of its proper divisors (27524642).

40440334 is a wasteful number, since it uses less digits than its factorization.

40440334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49731.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 40440334 is about 6359.2714991577. The cubic root of 40440334 is about 343.2455466219.

Adding to 40440334 its reverse (43304404), we get a palindrome (83744738).

The spelling of 40440334 in words is "forty million, four hundred forty thousand, three hundred thirty-four".