40429788 has 24 divisors (see below), whose sum is σ = 107812992. Its totient is φ = 11551344.

The previous prime is 40429787. The next prime is 40429801. The reversal of 40429788 is 88792404.

40429788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40429783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240570 + ... + 240737.

It is an arithmetic number, because the mean of its divisors is an integer number (4492208).

Almost surely, 2^40429788 is an apocalyptic number.

It is an amenable number.

40429788 is an abundant number, since it is smaller than the sum of its proper divisors (67383204).

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

40429788 is a wasteful number, since it uses less digits than its factorization.

40429788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481321 (or 481319 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 40429788 is about 6358.4422620639. The cubic root of 40429788 is about 343.2157069224.

The spelling of 40429788 in words is "forty million, four hundred twenty-nine thousand, seven hundred eighty-eight".