40309801 has 9 divisors (see below), whose sum is σ = 46942749. Its totient is φ = 34513164.

The previous prime is 40309793. The next prime is 40309817. The reversal of 40309801 is 10890304.

The square root of 40309801 is 6349.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 40309801 - 2³ = 40309793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40309891) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 43990 + ... + 44896.

It is an arithmetic number, because the mean of its divisors is an integer number (5215861).

Almost surely, 2^40309801 is an apocalyptic number.

40309801 is the 6349-th square number.

40309801 is the 3175-th centered octagonal number.

It is an amenable number.

40309801 is a deficient number, since it is larger than the sum of its proper divisors (6632948).

40309801 is an frugal number, since it uses more digits than its factorization.

40309801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The cubic root of 40309801 is about 342.8758401097.

Multiplying 40309801 by its sum of digits (25), we get a square (1007745025 = 31745²).

It can be divided in two parts, 4030 and 9801, that added together give a palindrome (13831).

The spelling of 40309801 in words is "forty million, three hundred nine thousand, eight hundred one".