40667401 has 4 divisors (see below), whose sum is σ = 40722304. Its totient is φ = 40612500.

The previous prime is 40667399. The next prime is 40667437. The reversal of 40667401 is 10476604.

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 a cyclic number.

It is not a de Polignac number, because 40667401 - 2¹ = 40667399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40667401.

It is not an unprimeable number, because it can be changed into a prime (40664401) 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, 26325 + ... + 27826.

It is an arithmetic number, because the mean of its divisors is an integer number (10180576).

Almost surely, 2^40667401 is an apocalyptic number.

It is an amenable number.

40667401 is a deficient number, since it is larger than the sum of its proper divisors (54903).

40667401 is an equidigital number, since it uses as much as digits as its factorization.

40667401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54902.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40667401 is about 6377.0997326371. The cubic root of 40667401 is about 343.8867737375.

The spelling of 40667401 in words is "forty million, six hundred sixty-seven thousand, four hundred one".