40001401 has 4 divisors (see below), whose sum is σ = 43637904. Its totient is φ = 36364900.

The previous prime is 40001399. The next prime is 40001407. The reversal of 40001401 is 10410004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40001401 - 2¹ = 40001399 is a prime.

It is a super-2 number, since 2×40001401² = 3200224163925602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40001407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1818235 + ... + 1818256.

It is an arithmetic number, because the mean of its divisors is an integer number (10909476).

Almost surely, 2^40001401 is an apocalyptic number.

It is an amenable number.

40001401 is a deficient number, since it is larger than the sum of its proper divisors (3636503).

40001401 is a wasteful number, since it uses less digits than its factorization.

40001401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636502.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 40001401 is about 6324.6660781420. Note that the first 3 decimals coincide. The cubic root of 40001401 is about 341.9991820826. Note that the first 3 decimals are identical.

Adding to 40001401 its reverse (10410004), we get a palindrome (50411405).

The spelling of 40001401 in words is "forty million, one thousand, four hundred one".