400850772 has 36 divisors (see below), whose sum is σ = 1088025120. Its totient is φ = 114528624.

The previous prime is 400850767. The next prime is 400850777. The reversal of 400850772 is 277058004.

It is an interprime number because it is at equal distance from previous prime (400850767) and next prime (400850777).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400850777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340272 + ... + 341447.

It is an arithmetic number, because the mean of its divisors is an integer number (30222920).

Almost surely, 2^400850772 is an apocalyptic number.

400850772 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

400850772 is an abundant number, since it is smaller than the sum of its proper divisors (687174348).

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

400850772 is a wasteful number, since it uses less digits than its factorization.

400850772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681740 (or 681731 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 400850772 is about 20021.2580024333. The cubic root of 400850772 is about 737.3283082853.

The spelling of 400850772 in words is "four hundred million, eight hundred fifty thousand, seven hundred seventy-two".