40243446 has 16 divisors (see below), whose sum is σ = 89430000. Its totient is φ = 13414464.

The previous prime is 40243417. The next prime is 40243459. The reversal of 40243446 is 64434204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372571 + ... + 372678.

It is an arithmetic number, because the mean of its divisors is an integer number (5589375).

Almost surely, 2^40243446 is an apocalyptic number.

40243446 is an abundant number, since it is smaller than the sum of its proper divisors (49186554).

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

40243446 is a wasteful number, since it uses less digits than its factorization.

40243446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745260 (or 745254 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 40243446 is about 6343.7722216360. The cubic root of 40243446 is about 342.6875978692.

The spelling of 40243446 in words is "forty million, two hundred forty-three thousand, four hundred forty-six".