400454712 has 192 divisors, whose sum is σ = 1312416000. Its totient is φ = 110797632.

The previous prime is 400454623. The next prime is 400454753. The reversal of 400454712 is 217454004.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5976903 + ... + 5976969.

It is an arithmetic number, because the mean of its divisors is an integer number (6835500).

Almost surely, 2^400454712 is an apocalyptic number.

400454712 is a gapful number since it is divisible by the number (42) 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 400454712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656208000).

400454712 is an abundant number, since it is smaller than the sum of its proper divisors (911961288).

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

400454712 is a wasteful number, since it uses less digits than its factorization.

400454712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 400454712 is about 20011.3645711631. The cubic root of 400454712 is about 737.0853895553.

The spelling of 400454712 in words is "four hundred million, four hundred fifty-four thousand, seven hundred twelve".