40401045 has 32 divisors (see below), whose sum is σ = 72374400. Its totient is φ = 21382272.

The previous prime is 40401043. The next prime is 40401071. The reversal of 40401045 is 54010404.

40401045 = 132³ + 133³ + ... + 146³.

It is not a de Polignac number, because 40401045 - 2¹ = 40401043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17689 + ... + 19841.

It is an arithmetic number, because the mean of its divisors is an integer number (2261700).

Almost surely, 2^40401045 is an apocalyptic number.

40401045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40401045 is a deficient number, since it is larger than the sum of its proper divisors (31973355).

40401045 is a wasteful number, since it uses less digits than its factorization.

40401045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2300 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40401045 is about 6356.1816368005. The cubic root of 40401045 is about 343.1343528162.

Adding to 40401045 its reverse (54010404), we get a palindrome (94411449).

The spelling of 40401045 in words is "forty million, four hundred one thousand, forty-five".