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400740474 = 2366790079
BaseRepresentation
bin10111111000101…
…101000001111010
31000221001201120210
4113320231001322
51310042143344
6103433131550
712634144401
oct2770550172
91027051523
10400740474
11196231282
12b2259bb6
1365040654
143b318638
15252acdb9
hex17e2d07a

400740474 has 8 divisors (see below), whose sum is σ = 801480960. Its totient is φ = 133580156.

The previous prime is 400740443. The next prime is 400740491. The reversal of 400740474 is 474047004.

It is a sphenic number, since it is the product of 3 distinct primes.

400740474 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33395034 + ... + 33395045.

It is an arithmetic number, because the mean of its divisors is an integer number (100185120).

Almost surely, 2400740474 is an apocalyptic number.

400740474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

400740474 is a wasteful number, since it uses less digits than its factorization.

400740474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66790084.

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 400740474 is about 20018.5032907058. The cubic root of 400740474 is about 737.2606743894.

Adding to 400740474 its reverse (474047004), we get a palindrome (874787478).

The spelling of 400740474 in words is "four hundred million, seven hundred forty thousand, four hundred seventy-four".

Divisors: 1 2 3 6 66790079 133580158 200370237 400740474