40212546 has 32 divisors (see below), whose sum is σ = 88425216. Its totient is φ = 12090000.

The previous prime is 40212521. The next prime is 40212547. The reversal of 40212546 is 64521204.

It is not an unprimeable number, because it can be changed into a prime (40212547) 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, 6321 + ... + 10971.

It is an arithmetic number, because the mean of its divisors is an integer number (2763288).

Almost surely, 2^40212546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40212546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44212608).

40212546 is an abundant number, since it is smaller than the sum of its proper divisors (48212670).

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

40212546 is a wasteful number, since it uses less digits than its factorization.

40212546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 40212546 is about 6341.3362945045. The cubic root of 40212546 is about 342.5998671605.

The spelling of 40212546 in words is "forty million, two hundred twelve thousand, five hundred forty-six".