400850740 has 24 divisors (see below), whose sum is σ = 852445440. Its totient is φ = 158310048.

The previous prime is 400850707. The next prime is 400850743. The reversal of 400850740 is 47058004.

It is a junction number, because it is equal to n+sod(n) for n = 400850699 and 400850708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400850743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125272 + ... + 128431.

It is an arithmetic number, because the mean of its divisors is an integer number (35518560).

Almost surely, 2^400850740 is an apocalyptic number.

It is an amenable number.

400850740 is an abundant number, since it is smaller than the sum of its proper divisors (451594700).

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

400850740 is a wasteful number, since it uses less digits than its factorization.

400850740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253791 (or 253789 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 400850740 is about 20021.2572032827. The cubic root of 400850740 is about 737.3282886649.

The spelling of 400850740 in words is "four hundred million, eight hundred fifty thousand, seven hundred forty".