40154412 has 24 divisors (see below), whose sum is σ = 97767936. Its totient is φ = 12802768.

The previous prime is 40154407. The next prime is 40154417. The reversal of 40154412 is 21445104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40154407) and next prime (40154417).

It is a super-2 number, since 2×40154412² = 3224753606131488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40154417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72468 + ... + 73019.

It is an arithmetic number, because the mean of its divisors is an integer number (4073664).

Almost surely, 2^40154412 is an apocalyptic number.

It is an amenable number.

40154412 is an abundant number, since it is smaller than the sum of its proper divisors (57613524).

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

40154412 is a wasteful number, since it uses less digits than its factorization.

40154412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145517 (or 145515 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40154412 is about 6336.7509024736. The cubic root of 40154412 is about 342.4346922916.

Adding to 40154412 its reverse (21445104), we get a palindrome (61599516).

The spelling of 40154412 in words is "forty million, one hundred fifty-four thousand, four hundred twelve".