400695120 has 160 divisors (see below), whose sum is σ = 1577399040. Its totient is φ = 91584000.

The previous prime is 400695109. The next prime is 400695131. The reversal of 400695120 is 21596004.

It is an interprime number because it is at equal distance from previous prime (400695109) and next prime (400695131).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1870 + ... + 28370.

It is an arithmetic number, because the mean of its divisors is an integer number (9858744).

Almost surely, 2^400695120 is an apocalyptic number.

400695120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400695120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788699520).

400695120 is an abundant number, since it is smaller than the sum of its proper divisors (1176703920).

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

400695120 is a wasteful number, since it uses less digits than its factorization.

400695120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26530 (or 26518 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 400695120 is about 20017.3704566809. The cubic root of 400695120 is about 737.2328600605.

The spelling of 400695120 in words is "four hundred million, six hundred ninety-five thousand, one hundred twenty".