40034398 has 16 divisors (see below), whose sum is σ = 63848736. Its totient is φ = 18784480.

The previous prime is 40034389. The next prime is 40034399. The reversal of 40034398 is 89343004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40034399) 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, 5773 + ... + 10648.

It is an arithmetic number, because the mean of its divisors is an integer number (3990546).

Almost surely, 2^40034398 is an apocalyptic number.

40034398 is a deficient number, since it is larger than the sum of its proper divisors (23814338).

40034398 is a wasteful number, since it uses less digits than its factorization.

40034398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16499.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 40034398 is about 6327.2741366247. The cubic root of 40034398 is about 342.0931941686.

The spelling of 40034398 in words is "forty million, thirty-four thousand, three hundred ninety-eight".