40196331 has 28 divisors (see below), whose sum is σ = 68885232. Its totient is φ = 22966416.

The previous prime is 40196329. The next prime is 40196333. The reversal of 40196331 is 13369104.

It is an interprime number because it is at equal distance from previous prime (40196329) and next prime (40196333).

It is not a de Polignac number, because 40196331 - 2¹ = 40196329 is a prime.

It is a super-2 number, since 2×40196331² = 3231490051723122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 40196295 and 40196304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40196333) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1165 + ... + 9041.

Almost surely, 2^40196331 is an apocalyptic number.

40196331 is a deficient number, since it is larger than the sum of its proper divisors (28688901).

40196331 is an frugal number, since it uses more digits than its factorization.

40196331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7902 (or 7887 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 40196331 is about 6340.0576495802. The cubic root of 40196331 is about 342.5538118514.

The spelling of 40196331 in words is "forty million, one hundred ninety-six thousand, three hundred thirty-one".