40424412 has 36 divisors (see below), whose sum is σ = 109725000. Its totient is φ = 11549664.

The previous prime is 40424411. The next prime is 40424431. The reversal of 40424412 is 21442404.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40424411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33787 + ... + 34962.

Almost surely, 2^40424412 is an apocalyptic number.

40424412 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40424412 is an abundant number, since it is smaller than the sum of its proper divisors (69300588).

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

40424412 is a wasteful number, since it uses less digits than its factorization.

40424412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68770 (or 68761 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 40424412 is about 6358.0195029584. The cubic root of 40424412 is about 343.2004936393.

Adding to 40424412 its reverse (21442404), we get a palindrome (61866816).

The spelling of 40424412 in words is "forty million, four hundred twenty-four thousand, four hundred twelve".