40343574 has 16 divisors (see below), whose sum is σ = 84934080. Its totient is φ = 12740040.

The previous prime is 40343573. The next prime is 40343609. The reversal of 40343574 is 47534304.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40343573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176832 + ... + 177059.

It is an arithmetic number, because the mean of its divisors is an integer number (5308380).

Almost surely, 2^40343574 is an apocalyptic number.

40343574 is an abundant number, since it is smaller than the sum of its proper divisors (44590506).

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

40343574 is a wasteful number, since it uses less digits than its factorization.

40343574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353915.

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 40343574 is about 6351.6591533236. The cubic root of 40343574 is about 342.9715712795.

Adding to 40343574 its reverse (47534304), we get a palindrome (87877878).

The spelling of 40343574 in words is "forty million, three hundred forty-three thousand, five hundred seventy-four".