401577628 has 6 divisors (see below), whose sum is σ = 702760856. Its totient is φ = 200788812.

The previous prime is 401577611. The next prime is 401577629. The reversal of 401577628 is 826775104.

It is a super-2 number, since 2×401577628² = 322529182620212768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401577629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50197200 + ... + 50197207.

Almost surely, 2^401577628 is an apocalyptic number.

It is an amenable number.

401577628 is a deficient number, since it is larger than the sum of its proper divisors (301183228).

401577628 is a wasteful number, since it uses less digits than its factorization.

401577628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100394411 (or 100394409 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 401577628 is about 20039.4018872820. The cubic root of 401577628 is about 737.7737008822.

The spelling of 401577628 in words is "four hundred one million, five hundred seventy-seven thousand, six hundred twenty-eight".