400677545 has 8 divisors (see below), whose sum is σ = 483230400. Its totient is φ = 318930480.

The previous prime is 400677527. The next prime is 400677553. The reversal of 400677545 is 545776004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400677545 - 2⁶ = 400677481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400677499 and 400677508.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 200351 + ... + 202340.

It is an arithmetic number, because the mean of its divisors is an integer number (60403800).

Almost surely, 2^400677545 is an apocalyptic number.

It is an amenable number.

400677545 is a deficient number, since it is larger than the sum of its proper divisors (82552855).

400677545 is a wasteful number, since it uses less digits than its factorization.

400677545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402895.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 400677545 is about 20016.9314581431. The cubic root of 400677545 is about 737.2220812444. Note that the first 3 decimals are identical.

The spelling of 400677545 in words is "four hundred million, six hundred seventy-seven thousand, five hundred forty-five".