400941653 has 4 divisors (see below), whose sum is σ = 458219040. Its totient is φ = 343664268.

The previous prime is 400941649. The next prime is 400941677. The reversal of 400941653 is 356149004.

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 400941653 - 2² = 400941649 is a prime.

It is a super-2 number, since 2×400941653² = 321508418220744818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400941683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28638683 + ... + 28638696.

It is an arithmetic number, because the mean of its divisors is an integer number (114554760).

Almost surely, 2^400941653 is an apocalyptic number.

It is an amenable number.

400941653 is a deficient number, since it is larger than the sum of its proper divisors (57277387).

400941653 is an equidigital number, since it uses as much as digits as its factorization.

400941653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57277386.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 400941653 is about 20023.5274864346. The cubic root of 400941653 is about 737.3840265020.

The spelling of 400941653 in words is "four hundred million, nine hundred forty-one thousand, six hundred fifty-three".