40390014 has 96 divisors (see below), whose sum is σ = 99809280. Its totient is φ = 10850112.

The previous prime is 40390003. The next prime is 40390033. The reversal of 40390014 is 41009304.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 511227 + ... + 511305.

It is an arithmetic number, because the mean of its divisors is an integer number (1039680).

Almost surely, 2^40390014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40390014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49904640).

40390014 is an abundant number, since it is smaller than the sum of its proper divisors (59419266).

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

40390014 is a wasteful number, since it uses less digits than its factorization.

40390014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 40390014 is about 6355.3138396148. The cubic root of 40390014 is about 343.1031204591.

Adding to 40390014 its reverse (41009304), we get a palindrome (81399318).

The spelling of 40390014 in words is "forty million, three hundred ninety thousand, fourteen".