40272330 has 32 divisors (see below), whose sum is σ = 110461824. Its totient is φ = 9205056.

The previous prime is 40272307. The next prime is 40272341. The reversal of 40272330 is 3327204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 40272297 and 40272306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95677 + ... + 96096.

It is an arithmetic number, because the mean of its divisors is an integer number (3451932).

Almost surely, 2^40272330 is an apocalyptic number.

40272330 is an abundant number, since it is smaller than the sum of its proper divisors (70189494).

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

40272330 is a wasteful number, since it uses less digits than its factorization.

40272330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191790.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 40272330 is about 6346.0483767460. The cubic root of 40272330 is about 342.7695641885.

Adding to 40272330 its reverse (3327204), we get a palindrome (43599534).

It can be divided in two parts, 402723 and 30, that added together give a triangular number (402753 = T₈₉₇).

The spelling of 40272330 in words is "forty million, two hundred seventy-two thousand, three hundred thirty".