400151650 has 12 divisors (see below), whose sum is σ = 744282162. Its totient is φ = 160060640.

The previous prime is 400151641. The next prime is 400151651. The reversal of 400151650 is 56151004.

It can be written as a sum of positive squares in 3 ways, for example, as 332369361 + 67782289 = 18231^2 + 8233^2 .

It is not an unprimeable number, because it can be changed into a prime (400151651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4001467 + ... + 4001566.

Almost surely, 2^400151650 is an apocalyptic number.

400151650 is a deficient number, since it is larger than the sum of its proper divisors (344130512).

400151650 is a wasteful number, since it uses less digits than its factorization.

400151650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8003045 (or 8003040 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 400151650 is about 20003.7908907287. The cubic root of 400151650 is about 736.8994018594.

The spelling of 400151650 in words is "four hundred million, one hundred fifty-one thousand, six hundred fifty".