40634284 has 24 divisors (see below), whose sum is σ = 78569568. Its totient is φ = 18289920.

The previous prime is 40634281. The next prime is 40634309. The reversal of 40634284 is 48243604.

It is a super-2 number, since 2×40634284² = 3302290072385312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40634281) 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, 11427 + ... + 14554.

It is an arithmetic number, because the mean of its divisors is an integer number (3273732).

Almost surely, 2^40634284 is an apocalyptic number.

It is an amenable number.

40634284 is a deficient number, since it is larger than the sum of its proper divisors (37935284).

40634284 is a wasteful number, since it uses less digits than its factorization.

40634284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26025 (or 26023 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 40634284 is about 6374.5026472659. The cubic root of 40634284 is about 343.7934017265.

Adding to 40634284 its reverse (48243604), we get a palindrome (88877888).

The spelling of 40634284 in words is "forty million, six hundred thirty-four thousand, two hundred eighty-four".