40345074 has 128 divisors (see below), whose sum is σ = 115752960. Its totient is φ = 10108800.

The previous prime is 40345057. The next prime is 40345093. The reversal of 40345074 is 47054304.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128742 + ... + 129054.

It is an arithmetic number, because the mean of its divisors is an integer number (904320).

Almost surely, 2^40345074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40345074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57876480).

40345074 is an abundant number, since it is smaller than the sum of its proper divisors (75407886).

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

40345074 is a wasteful number, since it uses less digits than its factorization.

40345074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 40345074 is about 6351.7772316101. Note that the first 3 decimals coincide. The cubic root of 40345074 is about 342.9758218613.

Adding to 40345074 its reverse (47054304), we get a palindrome (87399378).

The spelling of 40345074 in words is "forty million, three hundred forty-five thousand, seventy-four".