40634148 has 48 divisors (see below), whose sum is σ = 101183040. Its totient is φ = 12647424.

The previous prime is 40634147. The next prime is 40634161. The reversal of 40634148 is 84143604.

It is a super-2 number, since 2×40634148² = 3302267967371808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40634147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27640 + ... + 29072.

It is an arithmetic number, because the mean of its divisors is an integer number (2107980).

Almost surely, 2^40634148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40634148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50591520).

40634148 is an abundant number, since it is smaller than the sum of its proper divisors (60548892).

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

40634148 is a wasteful number, since it uses less digits than its factorization.

40634148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 40634148 is about 6374.4919797581. The cubic root of 40634148 is about 343.7930181755.

The spelling of 40634148 in words is "forty million, six hundred thirty-four thousand, one hundred forty-eight".