40303420 has 24 divisors (see below), whose sum is σ = 84806064. Its totient is φ = 16089216.

The previous prime is 40303411. The next prime is 40303433. The reversal of 40303420 is 2430304.

It is a junction number, because it is equal to n+sod(n) for n = 40303394 and 40303403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10024 + ... + 13456.

It is an arithmetic number, because the mean of its divisors is an integer number (3533586).

Almost surely, 2^40303420 is an apocalyptic number.

It is an amenable number.

40303420 is an abundant number, since it is smaller than the sum of its proper divisors (44502644).

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

40303420 is a wasteful number, since it uses less digits than its factorization.

40303420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40303420 is about 6348.4974600294. The cubic root of 40303420 is about 342.8577468574.

Adding to 40303420 its reverse (2430304), we get a palindrome (42733724).

The spelling of 40303420 in words is "forty million, three hundred three thousand, four hundred twenty".