40046556 has 48 divisors (see below), whose sum is σ = 103396608. Its totient is φ = 11961600.

The previous prime is 40046551. The next prime is 40046557. The reversal of 40046556 is 65564004.

40046556 = 710² + 711² + ... + 781².

It is a super-2 number, since 2×40046556² = 3207453294922272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40046551) 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, 7236 + ... + 11508.

It is an arithmetic number, because the mean of its divisors is an integer number (2154096).

Almost surely, 2^40046556 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 40046556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51698304).

40046556 is an abundant number, since it is smaller than the sum of its proper divisors (63350052).

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

40046556 is a wasteful number, since it uses less digits than its factorization.

40046556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362 (or 4360 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 40046556 is about 6328.2348249729. The cubic root of 40046556 is about 342.1278206257.

The spelling of 40046556 in words is "forty million, forty-six thousand, five hundred fifty-six".