401654477 has 16 divisors (see below), whose sum is σ = 471484800. Its totient is φ = 335054400.

The previous prime is 401654459. The next prime is 401654489. The reversal of 401654477 is 774456104.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 401654477 - 2¹⁸ = 401392333 is a prime.

It is a super-2 number, since 2×401654477² = 322652637788287058, which contains 22 as substring.

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 401654477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401654177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36899 + ... + 46527.

It is an arithmetic number, because the mean of its divisors is an integer number (29467800).

Almost surely, 2^401654477 is an apocalyptic number.

It is an amenable number.

401654477 is a deficient number, since it is larger than the sum of its proper divisors (69830323).

401654477 is a wasteful number, since it uses less digits than its factorization.

401654477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9796.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 401654477 is about 20041.3192430039. The cubic root of 401654477 is about 737.8207599071.

The spelling of 401654477 in words is "four hundred one million, six hundred fifty-four thousand, four hundred seventy-seven".