40302428 has 12 divisors (see below), whose sum is σ = 71725080. Its totient is φ = 19809552.

The previous prime is 40302421. The next prime is 40302473. The reversal of 40302428 is 82420304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40302421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85151 + ... + 85622.

It is an arithmetic number, because the mean of its divisors is an integer number (5977090).

Almost surely, 2^40302428 is an apocalyptic number.

It is an amenable number.

40302428 is a deficient number, since it is larger than the sum of its proper divisors (31422652).

40302428 is a wasteful number, since it uses less digits than its factorization.

40302428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170836 (or 170834 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 40302428 is about 6348.4193308256. The cubic root of 40302428 is about 342.8549338813.

The spelling of 40302428 in words is "forty million, three hundred two thousand, four hundred twenty-eight".