40149594 has 40 divisors (see below), whose sum is σ = 90662880. Its totient is φ = 13279464.

The previous prime is 40149583. The next prime is 40149607. The reversal of 40149594 is 49594104.

It is a happy number.

40149594 is nontrivially palindromic in base 8.

It is a super-2 number, since 2×40149594² = 3223979796729672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21627 + ... + 23409.

It is an arithmetic number, because the mean of its divisors is an integer number (2266572).

Almost surely, 2^40149594 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40149594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45331440).

40149594 is an abundant number, since it is smaller than the sum of its proper divisors (50513286).

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

40149594 is a wasteful number, since it uses less digits than its factorization.

40149594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 1927 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 40149594 is about 6336.3707277905. The cubic root of 40149594 is about 342.4209958611.

The spelling of 40149594 in words is "forty million, one hundred forty-nine thousand, five hundred ninety-four".