40364390 has 24 divisors (see below), whose sum is σ = 79863840. Its totient is φ = 14677520.

The previous prime is 40364383. The next prime is 40364393. The reversal of 40364390 is 9346304.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40364393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15470 + ... + 17889.

It is an arithmetic number, because the mean of its divisors is an integer number (3327660).

Almost surely, 2^40364390 is an apocalyptic number.

40364390 is a deficient number, since it is larger than the sum of its proper divisors (39499450).

40364390 is a wasteful number, since it uses less digits than its factorization.

40364390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33388 (or 33377 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 40364390 is about 6353.2975689794. The cubic root of 40364390 is about 343.0305486084.

The spelling of 40364390 in words is "forty million, three hundred sixty-four thousand, three hundred ninety".