40634154 has 24 divisors (see below), whose sum is σ = 96044832. Its totient is φ = 12313320.

The previous prime is 40634147. The next prime is 40634161. The reversal of 40634154 is 45143604.

It is an interprime number because it is at equal distance from previous prime (40634147) and next prime (40634161).

It is a super-2 number, since 2×40634154² = 3302268942591432, which contains 22 as substring.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 102414 + ... + 102809.

It is an arithmetic number, because the mean of its divisors is an integer number (4001868).

Almost surely, 2^40634154 is an apocalyptic number.

40634154 is an abundant number, since it is smaller than the sum of its proper divisors (55410678).

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

40634154 is a wasteful number, since it uses less digits than its factorization.

40634154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205242 (or 205239 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40634154 is about 6374.4924503838. The cubic root of 40634154 is about 343.7930350969.

Adding to 40634154 its reverse (45143604), we get a palindrome (85777758).

The spelling of 40634154 in words is "forty million, six hundred thirty-four thousand, one hundred fifty-four".