40034388 has 24 divisors (see below), whose sum is σ = 98908992. Its totient is φ = 12559744.

The previous prime is 40034381. The next prime is 40034389. The reversal of 40034388 is 88343004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40034381) 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, 97920 + ... + 98327.

It is an arithmetic number, because the mean of its divisors is an integer number (4121208).

Almost surely, 2^40034388 is an apocalyptic number.

It is an amenable number.

40034388 is an abundant number, since it is smaller than the sum of its proper divisors (58874604).

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

40034388 is a wasteful number, since it uses less digits than its factorization.

40034388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196271 (or 196269 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 40034388 is about 6327.2733463950. The cubic root of 40034388 is about 342.0931656854.

The spelling of 40034388 in words is "forty million, thirty-four thousand, three hundred eighty-eight".