400673475 has 18 divisors (see below), whose sum is σ = 717651116. Its totient is φ = 213692400.

The previous prime is 400673473. The next prime is 400673489. The reversal of 400673475 is 574376004.

It is not a de Polignac number, because 400673475 - 2¹ = 400673473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400673473) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 890161 + ... + 890610.

Almost surely, 2^400673475 is an apocalyptic number.

400673475 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

400673475 is a deficient number, since it is larger than the sum of its proper divisors (316977641).

400673475 is a wasteful number, since it uses less digits than its factorization.

400673475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780787 (or 1780779 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 400673475 is about 20016.8297939509. The cubic root of 400673475 is about 737.2195850526.

The spelling of 400673475 in words is "four hundred million, six hundred seventy-three thousand, four hundred seventy-five".