40212234 has 32 divisors (see below), whose sum is σ = 93248640. Its totient is φ = 12820896.

The previous prime is 40212209. The next prime is 40212251. The reversal of 40212234 is 43221204.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14947 + ... + 17430.

It is an arithmetic number, because the mean of its divisors is an integer number (2914020).

Almost surely, 2^40212234 is an apocalyptic number.

40212234 is an abundant number, since it is smaller than the sum of its proper divisors (53036406).

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

40212234 is a wasteful number, since it uses less digits than its factorization.

40212234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32411 (or 32405 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40212234 is about 6341.3116939636. The cubic root of 40212234 is about 342.5989811067.

Adding to 40212234 its reverse (43221204), we get a palindrome (83433438).

The spelling of 40212234 in words is "forty million, two hundred twelve thousand, two hundred thirty-four".