40302564 has 12 divisors (see below), whose sum is σ = 94039344. Its totient is φ = 13434184.

The previous prime is 40302557. The next prime is 40302571. The reversal of 40302564 is 46520304.

It is an interprime number because it is at equal distance from previous prime (40302557) and next prime (40302571).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679262 + ... + 1679285.

It is an arithmetic number, because the mean of its divisors is an integer number (7836612).

Almost surely, 2^40302564 is an apocalyptic number.

It is an amenable number.

40302564 is an abundant number, since it is smaller than the sum of its proper divisors (53736780).

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

40302564 is a wasteful number, since it uses less digits than its factorization.

40302564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358554 (or 3358552 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 40302564 is about 6348.4300421443. The cubic root of 40302564 is about 342.8553195340.

Adding to 40302564 its reverse (46520304), we get a palindrome (86822868).

The spelling of 40302564 in words is "forty million, three hundred two thousand, five hundred sixty-four".