40272420 has 48 divisors (see below), whose sum is σ = 115170048. Its totient is φ = 10510080.

The previous prime is 40272403. The next prime is 40272443. The reversal of 40272420 is 2427204.

40272420 = T₄₆₄ + T₄₆₅ + ... + T₆₉₈.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4321 + ... + 9960.

It is an arithmetic number, because the mean of its divisors is an integer number (2399376).

Almost surely, 2^40272420 is an apocalyptic number.

It is an amenable number.

40272420 is an abundant number, since it is smaller than the sum of its proper divisors (74897628).

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

40272420 is a wasteful number, since it uses less digits than its factorization.

40272420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14340 (or 14338 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 40272420 is about 6346.0554677689. The cubic root of 40272420 is about 342.7698195271.

Adding to 40272420 its reverse (2427204), we get a palindrome (42699624).

The spelling of 40272420 in words is "forty million, two hundred seventy-two thousand, four hundred twenty".