400103000 has 64 divisors (see below), whose sum is σ = 1021381920. Its totient is φ = 145488000.

The previous prime is 400102993. The next prime is 400103047. The reversal of 400103000 is 301004.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7187 + ... + 29186.

Almost surely, 2^400103000 is an apocalyptic number.

400103000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400103000 is an abundant number, since it is smaller than the sum of its proper divisors (621278920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400103000 is a wasteful number, since it uses less digits than its factorization.

400103000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36405 (or 36391 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 400103000 is about 20002.5748342557. The cubic root of 400103000 is about 736.8695368413.

Adding to 400103000 its reverse (301004), we get a palindrome (400404004).

The spelling of 400103000 in words is "four hundred million, one hundred three thousand".