40780284 has 12 divisors (see below), whose sum is σ = 95154024. Its totient is φ = 13593424.

The previous prime is 40780277. The next prime is 40780303. The reversal of 40780284 is 48208704.

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

It is a congruent number.

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, 1699167 + ... + 1699190.

It is an arithmetic number, because the mean of its divisors is an integer number (7929502).

Almost surely, 2^40780284 is an apocalyptic number.

It is an amenable number.

40780284 is an abundant number, since it is smaller than the sum of its proper divisors (54373740).

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

40780284 is a wasteful number, since it uses less digits than its factorization.

40780284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398364 (or 3398362 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 40780284 is about 6385.9442528102. The cubic root of 40780284 is about 344.2046623298.

Adding to 40780284 its reverse (48208704), we get a palindrome (88988988).

The spelling of 40780284 in words is "forty million, seven hundred eighty thousand, two hundred eighty-four".