400835030 has 32 divisors (see below), whose sum is σ = 755158464. Its totient is φ = 152897536.

The previous prime is 400834981. The next prime is 400835041. The reversal of 400835030 is 30538004.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400834987 and 400835005.

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, 78722 + ... + 83658.

It is an arithmetic number, because the mean of its divisors is an integer number (23598702).

Almost surely, 2^400835030 is an apocalyptic number.

400835030 is a deficient number, since it is larger than the sum of its proper divisors (354323434).

400835030 is a wasteful number, since it uses less digits than its factorization.

400835030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 400835030 is about 20020.8648664337. The cubic root of 400835030 is about 737.3186561695.

The spelling of 400835030 in words is "four hundred million, eight hundred thirty-five thousand, thirty".