40401153 has 64 divisors (see below), whose sum is σ = 68812800. Its totient is φ = 23250240.

The previous prime is 40401149. The next prime is 40401173. The reversal of 40401153 is 35110404.

It is a happy number.

It is not a de Polignac number, because 40401153 - 2² = 40401149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40401103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 511368 + ... + 511446.

It is an arithmetic number, because the mean of its divisors is an integer number (1075200).

Almost surely, 2^40401153 is an apocalyptic number.

It is an amenable number.

40401153 is a deficient number, since it is larger than the sum of its proper divisors (28411647).

40401153 is a wasteful number, since it uses less digits than its factorization.

40401153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40401153 is about 6356.1901324614. The cubic root of 40401153 is about 343.1346585713.

Adding to 40401153 its reverse (35110404), we get a palindrome (75511557).

The spelling of 40401153 in words is "forty million, four hundred one thousand, one hundred fifty-three".